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139902672462 = 23718397181063
BaseRepresentation
bin1000001001001011011…
…0010101111001001110
3111101010001120010110120
42002102312111321032
54243010041004322
6144134223445410
713051630044360
oct2022266257116
9441101503416
10139902672462
1154372458563
1223145156866
1310267675a37
146ab2734d30
15398c3e8a5c
hex2092d95e4e

139902672462 has 32 divisors (see below), whose sum is σ = 319796685312. Its totient is φ = 39969798624.

The previous prime is 139902672449. The next prime is 139902672487. The reversal of 139902672462 is 264276209931.

It is a congruent 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, 682143 + ... + 863205.

It is an arithmetic number, because the mean of its divisors is an integer number (9993646416).

Almost surely, 2139902672462 is an apocalyptic number.

139902672462 is an abundant number, since it is smaller than the sum of its proper divisors (179894012850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139902672462 is a wasteful number, since it uses less digits than its factorization.

139902672462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199472.

The product of its (nonzero) digits is 1959552, while the sum is 51.

The spelling of 139902672462 in words is "one hundred thirty-nine billion, nine hundred two million, six hundred seventy-two thousand, four hundred sixty-two".

Divisors: 1 2 3 6 7 14 21 42 18397 36794 55191 110382 128779 181063 257558 362126 386337 543189 772674 1086378 1267441 2534882 3802323 7604646 3331016011 6662032022 9993048033 19986096066 23317112077 46634224154 69951336231 139902672462