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13361472 = 263223197
BaseRepresentation
bin110010111110…
…000101000000
3221010211111100
4302332011000
511410031342
61154214400
7221366505
oct62760500
927124440
1013361472
1175a6743
124584400
1329ca8c7
141abb4ac
15128de4c
hexcbe140

13361472 has 42 divisors (see below), whose sum is σ = 38299898. Its totient is φ = 4453632.

The previous prime is 13361441. The next prime is 13361479. The reversal of 13361472 is 27416331.

13361472 is a `hidden beast` number, since 133 + 61 + 472 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7485696 + 5875776 = 2736^2 + 2424^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13361479) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11023 + ... + 12174.

Almost surely, 213361472 is an apocalyptic number.

13361472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13361472 is an abundant number, since it is smaller than the sum of its proper divisors (24938426).

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

13361472 is a wasteful number, since it uses less digits than its factorization.

13361472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23215 (or 23202 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 13361472 is about 3655.3347315944. The cubic root of 13361472 is about 237.2929134829.

The spelling of 13361472 in words is "thirteen million, three hundred sixty-one thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 144 192 288 576 23197 46394 69591 92788 139182 185576 208773 278364 371152 417546 556728 742304 835092 1113456 1484608 1670184 2226912 3340368 4453824 6680736 13361472