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72541070131153 = 13169315737209441
BaseRepresentation
bin10000011111100111001000…
…101101110111111111010001
3100111211212011220101011110211
4100133213020231313333101
534002003102423144103
6414140524011124121
721164630225253241
oct2037471055677721
9314755156334424
1072541070131153
1121128549a46858
128176b41743641
1331627940919a0
1413cb013cabb21
1585be5e02436d
hex41f9c8b77fd1

72541070131153 has 16 divisors (see below), whose sum is σ = 78172636416336. Its totient is φ = 66916864143360.

The previous prime is 72541070131097. The next prime is 72541070131171. The reversal of 72541070131153 is 35113107014527.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 891481537489 + 71649588593664 = 944183^2 + 8464608^2 .

It is a cyclic number.

It is not a de Polignac number, because 72541070131153 - 217 = 72541070000081 is a prime.

It is a super-2 number, since 2×725410701311532 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72541070131853) 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, 346250913 + ... + 346460353.

It is an arithmetic number, because the mean of its divisors is an integer number (4885789776021).

Almost surely, 272541070131153 is an apocalyptic number.

It is an amenable number.

72541070131153 is a deficient number, since it is larger than the sum of its proper divisors (5631566285183).

72541070131153 is a wasteful number, since it uses less digits than its factorization.

72541070131153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226884.

The product of its (nonzero) digits is 88200, while the sum is 40.

The spelling of 72541070131153 in words is "seventy-two trillion, five hundred forty-one billion, seventy million, one hundred thirty-one thousand, one hundred fifty-three".

Divisors: 1 13 1693 15737 22009 204581 209441 2722733 26642741 346355633 354583613 3295973017 4609586969 42847649221 5580082317781 72541070131153