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13072008 = 233544667
BaseRepresentation
bin110001110111…
…011010001000
3220121010102110
4301313122020
511321301013
61144102320
7216052545
oct61673210
926533373
1013072008
117419214
1244649a0
132928c21
141a43bcc
1512332c3
hexc77688

13072008 has 16 divisors (see below), whose sum is σ = 32680080. Its totient is φ = 4357328.

The previous prime is 13071979. The next prime is 13072009. The reversal of 13072008 is 80027031.

13072008 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13072009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 272310 + ... + 272357.

It is an arithmetic number, because the mean of its divisors is an integer number (2042505).

Almost surely, 213072008 is an apocalyptic number.

It is an amenable number.

13072008 is an abundant number, since it is smaller than the sum of its proper divisors (19608072).

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

13072008 is a wasteful number, since it uses less digits than its factorization.

13072008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544676 (or 544672 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 13072008 is about 3615.5231986533. The cubic root of 13072008 is about 235.5668104402.

Adding to 13072008 its reverse (80027031), we get a palindrome (93099039).

The spelling of 13072008 in words is "thirteen million, seventy-two thousand, eight".

Divisors: 1 2 3 4 6 8 12 24 544667 1089334 1634001 2178668 3268002 4357336 6536004 13072008