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13863038631 = 3138913729153
BaseRepresentation
bin11001110100100110…
…10010111010100111
31022210010202022220020
430322103102322213
5211342414214011
610211341010223
71000352612151
oct147223227247
938703668806
1013863038631
115974362122
12282a853973
1313cc126950
14957223ad1
155620cc006
hex33a4d2ea7

13863038631 has 32 divisors (see below), whose sum is σ = 20277190080. Its totient is φ = 8373387264.

The previous prime is 13863038557. The next prime is 13863038659. The reversal of 13863038631 is 13683036831.

It is not a de Polignac number, because 13863038631 - 27 = 13863038503 is a prime.

It is a super-2 number, since 2×138630386312 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13863038681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 460951 + ... + 490103.

It is an arithmetic number, because the mean of its divisors is an integer number (633662190).

Almost surely, 213863038631 is an apocalyptic number.

13863038631 is a deficient number, since it is larger than the sum of its proper divisors (6414151449).

13863038631 is a wasteful number, since it uses less digits than its factorization.

13863038631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29395.

The product of its (nonzero) digits is 186624, while the sum is 42.

The spelling of 13863038631 in words is "thirteen billion, eight hundred sixty-three million, thirty-eight thousand, six hundred thirty-one".

Divisors: 1 3 13 39 89 137 267 411 1157 1781 3471 5343 12193 29153 36579 87459 158509 378989 475527 1136967 2594617 3993961 7783851 11981883 33730021 51921493 101190063 155764479 355462529 1066387587 4621012877 13863038631