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131387989094 = 2160940829083
BaseRepresentation
bin111101001011101010…
…1011001110001100110
3110120010122200101201022
41322113111121301212
54123040311122334
6140205300331142
712330626323535
oct1722725316146
9416118611638
10131387989094
11507a310495a
12215696a3ab2
13c50b60935b
14650597231c
15363eb3482e
hex1e97559c66

131387989094 has 8 divisors (see below), whose sum is σ = 197204475720. Its totient is φ = 65653163856.

The previous prime is 131387989087. The next prime is 131387989127. The reversal of 131387989094 is 490989783131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20411324 + ... + 20417759.

It is an arithmetic number, because the mean of its divisors is an integer number (24650559465).

Almost surely, 2131387989094 is an apocalyptic number.

131387989094 is a deficient number, since it is larger than the sum of its proper divisors (65816486626).

131387989094 is a wasteful number, since it uses less digits than its factorization.

131387989094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40830694.

The product of its (nonzero) digits is 11757312, while the sum is 62.

The spelling of 131387989094 in words is "one hundred thirty-one billion, three hundred eighty-seven million, nine hundred eighty-nine thousand, ninety-four".

Divisors: 1 2 1609 3218 40829083 81658166 65693994547 131387989094