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13089892 = 223272473
BaseRepresentation
bin110001111011…
…110001100100
3220122000221211
4301323301210
511322334032
61144321204
7216155644
oct61736144
926560854
1013089892
1174306a2
124473204
1329340ca
141a4a524
151238747
hexc7bc64

13089892 has 6 divisors (see below), whose sum is σ = 22907318. Its totient is φ = 6544944.

The previous prime is 13089889. The next prime is 13089893. The reversal of 13089892 is 29898031.

It can be written as a sum of positive squares in only one way, i.e., 12916836 + 173056 = 3594^2 + 416^2 .

It is a super-3 number, since 3×130898923 (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (13089893) 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 as a sum of consecutive naturals, namely, 1636233 + ... + 1636240.

Almost surely, 213089892 is an apocalyptic number.

It is an amenable number.

13089892 is a deficient number, since it is larger than the sum of its proper divisors (9817426).

13089892 is a wasteful number, since it uses less digits than its factorization.

13089892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3272477 (or 3272475 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 13089892 is about 3617.9955776645. The cubic root of 13089892 is about 235.6741889206.

The spelling of 13089892 in words is "thirteen million, eighty-nine thousand, eight hundred ninety-two".

Divisors: 1 2 4 3272473 6544946 13089892