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131689042382 = 21371709281227
BaseRepresentation
bin111101010100101000…
…1110101000111001110
3110120220122011111012002
41322221101311013032
54124144343324012
6140255213112302
712341243251112
oct1725121650716
9416818144162
10131689042382
1150938038727
1221632488692
13c558ab56b1
14653393b742
15365b2a07c2
hex1ea94751ce

131689042382 has 16 divisors (see below), whose sum is σ = 199092550320. Its totient is φ = 65325425088.

The previous prime is 131689042379. The next prime is 131689042391. The reversal of 131689042382 is 283240986131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 327653 + ... + 608879.

It is an arithmetic number, because the mean of its divisors is an integer number (12443284395).

Almost surely, 2131689042382 is an apocalyptic number.

131689042382 is a deficient number, since it is larger than the sum of its proper divisors (67403507938).

131689042382 is a wasteful number, since it uses less digits than its factorization.

131689042382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283075.

The product of its (nonzero) digits is 497664, while the sum is 47.

The spelling of 131689042382 in words is "one hundred thirty-one billion, six hundred eighty-nine million, forty-two thousand, three hundred eighty-two".

Divisors: 1 2 137 274 1709 3418 234133 281227 468266 562454 38528099 77056198 480616943 961233886 65844521191 131689042382