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13057056271 = 77126271743
BaseRepresentation
bin11000010100100001…
…01101111000001111
31020200222011011221201
430022100231320033
5203220101300041
65555350010331
7641365101310
oct141220557017
936628134851
1013057056271
1155a04056a6
1226449469a7
13130115aacc
148bc17c607
15516472631
hex30a42de0f

13057056271 has 8 divisors (see below), whose sum is σ = 15132524544. Its totient is φ = 11034131640.

The previous prime is 13057056269. The next prime is 13057056289. The reversal of 13057056271 is 17265075031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13057056271 - 21 = 13057056269 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13057056271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13057053271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13135375 + ... + 13136368.

It is an arithmetic number, because the mean of its divisors is an integer number (1891565568).

Almost surely, 213057056271 is an apocalyptic number.

13057056271 is a deficient number, since it is larger than the sum of its proper divisors (2075468273).

13057056271 is an equidigital number, since it uses as much as digits as its factorization.

13057056271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26271821.

The product of its (nonzero) digits is 44100, while the sum is 37.

The spelling of 13057056271 in words is "thirteen billion, fifty-seven million, fifty-six thousand, two hundred seventy-one".

Divisors: 1 7 71 497 26271743 183902201 1865293753 13057056271