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69008913 = 3213955163
BaseRepresentation
bin1000001110011…
…11111000010001
311210212000102200
410013033320101
5120131241123
610503033413
71465365111
oct407177021
9153760380
1069008913
1135a54466
121b13b869
13113b269c
149245041
1560d2143
hex41cfe11

69008913 has 12 divisors (see below), whose sum is σ = 100398480. Its totient is φ = 45674136.

The previous prime is 69008843. The next prime is 69008923. The reversal of 69008913 is 31980096.

It is not a de Polignac number, because 69008913 - 216 = 68943377 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (69008923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26331 + ... + 28832.

It is an arithmetic number, because the mean of its divisors is an integer number (8366540).

Almost surely, 269008913 is an apocalyptic number.

It is an amenable number.

69008913 is a deficient number, since it is larger than the sum of its proper divisors (31389567).

69008913 is a wasteful number, since it uses less digits than its factorization.

69008913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55308 (or 55305 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 69008913 is about 8307.1603451480. The cubic root of 69008913 is about 410.1742527206.

The spelling of 69008913 in words is "sixty-nine million, eight thousand, nine hundred thirteen".

Divisors: 1 3 9 139 417 1251 55163 165489 496467 7667657 23002971 69008913