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139623047870 = 25105131328099
BaseRepresentation
bin1000001000001000101…
…1101010001010111110
3111100101120101201122012
42002002023222022332
54241422000012440
6144050354251222
713041663216335
oct2020213521276
9440346351565
10139623047870
1154239630459
1223087586b12
13102217601b7
146a87546d1c
153972ab1e65
hex20822ea2be

139623047870 has 16 divisors (see below), whose sum is σ = 251345581200. Its totient is φ = 55843864704.

The previous prime is 139623047857. The next prime is 139623047881. The reversal of 139623047870 is 78740326931.

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, 558920 + ... + 769179.

It is an arithmetic number, because the mean of its divisors is an integer number (15709098825).

Almost surely, 2139623047870 is an apocalyptic number.

139623047870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139623047870 is a deficient number, since it is larger than the sum of its proper divisors (111722533330).

139623047870 is a wasteful number, since it uses less digits than its factorization.

139623047870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1338619.

The product of its (nonzero) digits is 1524096, while the sum is 50.

The spelling of 139623047870 in words is "one hundred thirty-nine billion, six hundred twenty-three million, forty-seven thousand, eight hundred seventy".

Divisors: 1 2 5 10 10513 21026 52565 105130 1328099 2656198 6640495 13280990 13962304787 27924609574 69811523935 139623047870