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13057881657 = 3101293147083
BaseRepresentation
bin11000010100100111…
…10111011000111001
31020201000201010011120
430022103313120321
5203220304203112
65555415415453
7641405106552
oct141223673071
936630633146
1013057881657
1155a0919837
122645084589
1313013896c2
148bc315329
15516586e8c
hex30a4f7639

13057881657 has 16 divisors (see below), whose sum is σ = 17643019968. Its totient is φ = 8589588800.

The previous prime is 13057881647. The next prime is 13057881667. The reversal of 13057881657 is 75618875031.

It is an interprime number because it is at equal distance from previous prime (13057881647) and next prime (13057881667).

It is a cyclic number.

It is not a de Polignac number, because 13057881657 - 211 = 13057879609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13057881607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15238 + ... + 162320.

It is an arithmetic number, because the mean of its divisors is an integer number (1102688748).

Almost surely, 213057881657 is an apocalyptic number.

It is an amenable number.

13057881657 is a deficient number, since it is larger than the sum of its proper divisors (4585138311).

13057881657 is a wasteful number, since it uses less digits than its factorization.

13057881657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147480.

The product of its (nonzero) digits is 1411200, while the sum is 51.

The spelling of 13057881657 in words is "thirteen billion, fifty-seven million, eight hundred eighty-one thousand, six hundred fifty-seven".

Divisors: 1 3 101 293 303 879 29593 88779 147083 441249 14855383 43095319 44566149 129285957 4352627219 13057881657