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138764000015 = 5314871838299
BaseRepresentation
bin1000000100111011111…
…0101001101100001111
3111021011200221120111222
42001032332221230033
54233142041000030
6143425230033555
713011462352544
oct2011676515417
9437150846458
10138764000015
115393872a053
1222a879488bb
13101157a4864
146a0540abcb
1539224743e5
hex204efa9b0f

138764000015 has 16 divisors (see below), whose sum is σ = 172241356800. Its totient is φ = 107209539360.

The previous prime is 138764000009. The next prime is 138764000033. The reversal of 138764000015 is 510000467831.

It is not a de Polignac number, because 138764000015 - 212 = 138763995919 is a prime.

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, 843665 + ... + 994634.

It is an arithmetic number, because the mean of its divisors is an integer number (10765084800).

Almost surely, 2138764000015 is an apocalyptic number.

138764000015 is a deficient number, since it is larger than the sum of its proper divisors (33477356785).

138764000015 is a wasteful number, since it uses less digits than its factorization.

138764000015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1838822.

The product of its (nonzero) digits is 20160, while the sum is 35.

Adding to 138764000015 its reverse (510000467831), we get a palindrome (648764467846).

The spelling of 138764000015 in words is "one hundred thirty-eight billion, seven hundred sixty-four million, fifteen", and thus it is an aban number.

Divisors: 1 5 31 155 487 2435 15097 75485 1838299 9191495 56987269 284936345 895251613 4476258065 27752800003 138764000015