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131163260870 = 2567883722153
BaseRepresentation
bin111101000100111110…
…0001000011111000110
3110112112222211000112202
41322021330020133012
54122110243321440
6140131111514502
712322230215315
oct1721174103706
9415488730482
10131163260870
1150698272254
1221506388a32
13c4a3ba4785
1464c3b9427c
15362a043615
hex1e89f087c6

131163260870 has 32 divisors (see below), whose sum is σ = 239655591648. Its totient is φ = 51674059008.

The previous prime is 131163260867. The next prime is 131163260939. The reversal of 131163260870 is 78062361131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5909714 + ... + 5931866.

It is an arithmetic number, because the mean of its divisors is an integer number (7489237239).

Almost surely, 2131163260870 is an apocalyptic number.

131163260870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131163260870 is a deficient number, since it is larger than the sum of its proper divisors (108492330778).

131163260870 is a wasteful number, since it uses less digits than its factorization.

131163260870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31064.

The product of its (nonzero) digits is 36288, while the sum is 38.

The spelling of 131163260870 in words is "one hundred thirty-one billion, one hundred sixty-three million, two hundred sixty thousand, eight hundred seventy".

Divisors: 1 2 5 10 67 134 335 670 8837 17674 22153 44185 44306 88370 110765 221530 592079 1184158 1484251 2960395 2968502 5920790 7421255 14842510 195766061 391532122 978830305 1957660610 13116326087 26232652174 65581630435 131163260870