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13056087 = 3113831033
BaseRepresentation
bin110001110011…
…100001010111
3220120022120210
4301303201113
511320243322
61143500503
7215655252
oct61634127
926508523
1013056087
117408260
124457733
1329218c5
141a3c099
15122d70c
hexc73857

13056087 has 16 divisors (see below), whose sum is σ = 19058688. Its totient is φ = 7884480.

The previous prime is 13056077. The next prime is 13056101. The reversal of 13056087 is 78065031.

It is not a de Polignac number, because 13056087 - 26 = 13056023 is a prime.

It is a super-2 number, since 2×130560872 = 340922815503138, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13056037) 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 15 ways as a sum of consecutive naturals, for example, 12123 + ... + 13155.

It is an arithmetic number, because the mean of its divisors is an integer number (1191168).

Almost surely, 213056087 is an apocalyptic number.

13056087 is a deficient number, since it is larger than the sum of its proper divisors (6002601).

13056087 is a wasteful number, since it uses less digits than its factorization.

13056087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1430.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 13056087 is about 3613.3207718109. The cubic root of 13056087 is about 235.4711357017.

The spelling of 13056087 in words is "thirteen million, fifty-six thousand, eighty-seven".

Divisors: 1 3 11 33 383 1033 1149 3099 4213 11363 12639 34089 395639 1186917 4352029 13056087