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80042675531 = 7132565311969
BaseRepresentation
bin100101010001011101…
…0100100110101001011
321122121022102012211012
41022202322210311023
52302411411104111
6100434320154135
75532350342030
oct1124272446513
9248538365735
1080042675531
1130a45004915
121361a16894b
137717c27400
143c346c7387
1521370ed48b
hex12a2ea4d4b

80042675531 has 24 divisors (see below), whose sum is σ = 99081148320. Its totient is φ = 63313975296.

The previous prime is 80042675519. The next prime is 80042675599. The reversal of 80042675531 is 13557624008.

It is not a de Polignac number, because 80042675531 - 226 = 79975566667 is a prime.

It is a super-2 number, since 2×800426755312 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80042675231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6681515 + ... + 6693483.

It is an arithmetic number, because the mean of its divisors is an integer number (4128381180).

Almost surely, 280042675531 is an apocalyptic number.

80042675531 is a deficient number, since it is larger than the sum of its proper divisors (19038472789).

80042675531 is a wasteful number, since it uses less digits than its factorization.

80042675531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17655 (or 17642 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 41.

The spelling of 80042675531 in words is "eighty billion, forty-two million, six hundred seventy-five thousand, five hundred thirty-one".

Divisors: 1 7 13 91 169 1183 5653 11969 39571 73489 83783 155597 514423 955357 1089179 2022761 6687499 14159327 67660757 473625299 879589841 6157128887 11434667933 80042675531