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131075738268 = 22357119129559
BaseRepresentation
bin111101000010010111…
…0010000101010011100
3110112022220010102002220
41322010232100222130
54121420342111033
6140114303545340
712320115251346
oct1720456205234
9415286112086
10131075738268
1150652923222
12214a0bbb250
13c48ba0c357
1464b62d0296
153622505bb3
hex1e84b90a9c

131075738268 has 24 divisors (see below), whose sum is σ = 306379032960. Its totient is φ = 43615392240.

The previous prime is 131075738263. The next prime is 131075738293. The reversal of 131075738268 is 862837570131.

It is a self number, because there is not a number n which added to its sum of digits gives 131075738268.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131075738263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9557928 + ... + 9571631.

It is an arithmetic number, because the mean of its divisors is an integer number (12765793040).

Almost surely, 2131075738268 is an apocalyptic number.

It is an amenable number.

131075738268 is an abundant number, since it is smaller than the sum of its proper divisors (175303294692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131075738268 is a wasteful number, since it uses less digits than its factorization.

131075738268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19130137 (or 19130135 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 51.

The spelling of 131075738268 in words is "one hundred thirty-one billion, seventy-five million, seven hundred thirty-eight thousand, two hundred sixty-eight".

Divisors: 1 2 3 4 6 12 571 1142 1713 2284 3426 6852 19129559 38259118 57388677 76518236 114777354 229554708 10922978189 21845956378 32768934567 43691912756 65537869134 131075738268