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13162344221 = 1319371440239
BaseRepresentation
bin11000100001000100…
…10110111100011101
31020222022021100212102
430100202112330131
5203424030003341
610014030414445
7644114036255
oct142042267435
936868240772
1013162344221
115644889034
122674061425
131319c03480
148cc148965
1552081dc9b
hex310896f1d

13162344221 has 16 divisors (see below), whose sum is σ = 15324153600. Its totient is φ = 11199290688.

The previous prime is 13162344211. The next prime is 13162344229. The reversal of 13162344221 is 12244326131.

It is not a de Polignac number, because 13162344221 - 214 = 13162327837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13162344229) 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, 710981 + ... + 729258.

It is an arithmetic number, because the mean of its divisors is an integer number (957759600).

Almost surely, 213162344221 is an apocalyptic number.

It is an amenable number.

13162344221 is a deficient number, since it is larger than the sum of its proper divisors (2161809379).

13162344221 is a wasteful number, since it uses less digits than its factorization.

13162344221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1440308.

The product of its digits is 6912, while the sum is 29.

The spelling of 13162344221 in words is "thirteen billion, one hundred sixty-two million, three hundred forty-four thousand, two hundred twenty-one".

Divisors: 1 13 19 37 247 481 703 9139 1440239 18723107 27364541 53288843 355739033 692754959 1012488017 13162344221