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13056057 = 327207239
BaseRepresentation
bin110001110011…
…100000111001
3220120022112200
4301303200321
511320243212
61143500413
7215655210
oct61634071
926508480
1013056057
117408233
124457709
1329218a1
141a3c077
15122d6dc
hexc73839

13056057 has 12 divisors (see below), whose sum is σ = 21552960. Its totient is φ = 7460568.

The previous prime is 13056037. The next prime is 13056077. The reversal of 13056057 is 75065031.

13056057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13056037) and next prime (13056077).

It is not a de Polignac number, because 13056057 - 26 = 13055993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13056057.

It is not an unprimeable number, because it can be changed into a prime (13056037) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103557 + ... + 103682.

It is an arithmetic number, because the mean of its divisors is an integer number (1796080).

Almost surely, 213056057 is an apocalyptic number.

It is an amenable number.

13056057 is a deficient number, since it is larger than the sum of its proper divisors (8496903).

13056057 is a wasteful number, since it uses less digits than its factorization.

13056057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207252 (or 207249 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 27.

The square root of 13056057 is about 3613.3166205026. The cubic root of 13056057 is about 235.4709553481.

The spelling of 13056057 in words is "thirteen million, fifty-six thousand, fifty-seven".

Divisors: 1 3 7 9 21 63 207239 621717 1450673 1865151 4352019 13056057