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12623472 = 243329221
BaseRepresentation
bin110000001001…
…111001110000
3212202100011000
4300021321300
511212422342
61130322000
7212204061
oct60117160
925670130
1012623472
117142224
124289300
1327cca14
141968568
15119544c
hexc09e70

12623472 has 40 divisors (see below), whose sum is σ = 36235280. Its totient is φ = 4207680.

The previous prime is 12623459. The next prime is 12623473. The reversal of 12623472 is 27432621.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12623473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14179 + ... + 15042.

It is an arithmetic number, because the mean of its divisors is an integer number (905882).

Almost surely, 212623472 is an apocalyptic number.

12623472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12623472 is an abundant number, since it is smaller than the sum of its proper divisors (23611808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12623472 is a wasteful number, since it uses less digits than its factorization.

12623472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29238 (or 29226 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 12623472 is about 3552.9525749720. The cubic root of 12623472 is about 232.8410810699.

The spelling of 12623472 in words is "twelve million, six hundred twenty-three thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 108 144 216 432 29221 58442 87663 116884 175326 233768 262989 350652 467536 525978 701304 788967 1051956 1402608 1577934 2103912 3155868 4207824 6311736 12623472