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Advent calendar 2016
10 December
All 2016 advent puzzles
~
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The smallest number that is equal to the sum of its digits multiplied by ten more than the sum of its digits.
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171
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numbers
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digits
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Archive
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Most recent collections
Advent calendar 2025
Advent calendar 2024
Advent calendar 2023
Advent calendar 2022
List of all puzzles
Tags
symmetry
pentagons
the only crossnumber
trigonometry
expansions
lines
bases
elections
sport
chalkdust crossnumber
people maths
fractions
consecutive numbers
quadrilaterals
integers
planes
tiling
time
indices
floors
polygons
odd numbers
consecutive integers
coins
taxicab geometry
cubics
shape
spheres
chess
neighbours
triangle numbers
balancing
digital products
area
number
ellipses
multiplication
probabilty
numbers
functions
median
palindromes
shapes
sets
rectangles
dominos
speed
3d shapes
clocks
angles
books
squares
matrices
triangles
star numbers
circles
crossnumbers
advent
chocolate
2d shapes
albgebra
scales
regular shapes
perimeter
irreducible numbers
menace
determinants
means
cards
percentages
square grids
binary
probability
unit fractions
division
games
xor
quadratics
ave
axes
cryptic crossnumbers
digits
folding tube maps
logic
combinatorics
coordinates
products
decahedra
sequences
sums
integration
medians
money
algebra
square numbers
crosswords
addition
prime factors
geometric means
christmas
surds
factors
dice
parabolas
averages
even numbers
mean
hexagons
tournaments
pascal's triangle
partitions
square roots
calculus
differentiation
graphs
remainders
range
digital clocks
cryptic clues
colouring
multiplaction squares
grids
proportion
geometry
complex numbers
routes
gerrymandering
multiples
dates
cube numbers
polynomials
wordplay
lists
powers
tangents
doubling
geometric mean
dodecagons
perfect numbers
sum to infinity
factorials
arrows
rugby
prime numbers
volume
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