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131870047994 = 24147295311587
BaseRepresentation
bin111101011010000010…
…0010011111011111010
3110121101020202112012122
41322310010103323322
54130032213013434
6140325200441242
712345601625216
oct1726404237372
9417336675178
10131870047994
1150a20227943
1221683019222
13c58744c1c9
14654d9b7946
15366c106c2e
hex1eb4113efa

131870047994 has 32 divisors (see below), whose sum is σ = 207028797696. Its totient is φ = 62931444480.

The previous prime is 131870047961. The next prime is 131870048021. The reversal of 131870047994 is 499740078131.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11375069 + ... + 11386655.

It is an arithmetic number, because the mean of its divisors is an integer number (6469649928).

Almost surely, 2131870047994 is an apocalyptic number.

131870047994 is a deficient number, since it is larger than the sum of its proper divisors (75158749702).

131870047994 is a wasteful number, since it uses less digits than its factorization.

131870047994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14630.

The product of its (nonzero) digits is 1524096, while the sum is 53.

The spelling of 131870047994 in words is "one hundred thirty-one billion, eight hundred seventy million, forty-seven thousand, nine hundred ninety-four".

Divisors: 1 2 41 47 82 94 1927 2953 3854 5906 11587 23174 121073 138791 242146 277582 475067 544589 950134 1089178 5690431 11380862 22328149 34216411 44656298 68432822 1402872851 1608171317 2805745702 3216342634 65935023997 131870047994