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131020113202 = 211291032418273
BaseRepresentation
bin111101000000101101…
…0000100010100110010
3110112012000110100212021
41322001122010110302
54121312122110302
6140104555422054
712315541405216
oct1720132042462
9415160410767
10131020113202
11506244902a0
122148645492a
13c480334804
1464acb70946
15361c6b9437
hex1e81684532

131020113202 has 64 divisors (see below), whose sum is σ = 224899234560. Its totient is φ = 56699596800.

The previous prime is 131020113163. The next prime is 131020113221. The reversal of 131020113202 is 202311020131.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15832938 + ... + 15841210.

It is an arithmetic number, because the mean of its divisors is an integer number (3514050540).

Almost surely, 2131020113202 is an apocalyptic number.

131020113202 is a deficient number, since it is larger than the sum of its proper divisors (93879121358).

131020113202 is a wasteful number, since it uses less digits than its factorization.

131020113202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8659.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 131020113202 its reverse (202311020131), we get a palindrome (333331133333).

The spelling of 131020113202 in words is "one hundred thirty-one billion, twenty million, one hundred thirteen thousand, two hundred two".

Divisors: 1 2 11 22 29 58 103 206 241 319 482 638 1133 2266 2651 2987 5302 5974 6989 8273 13978 16546 24823 32857 49646 65714 76879 91003 153758 182006 239917 273053 479834 546106 719867 852119 1439734 1704238 1993793 2639087 3987586 5278174 7918537 9373309 15837074 18746618 21931723 24711451 43863446 49422902 57819997 115639994 205360679 271825961 410721358 543651922 636019967 1272039934 2258967469 4517934938 5955459691 11910919382 65510056601 131020113202