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13886230731 = 3191031236293
BaseRepresentation
bin11001110111010111…
…10001000011001011
31022211202101121110220
430323223301003023
5211414333340411
610213530041123
71001054004462
oct147353610313
938752347426
1013886230731
11598646274a
1228365791a3
131403b86c99
1495a33d9d9
1556415db06
hex33baf10cb

13886230731 has 16 divisors (see below), whose sum is σ = 19508432640. Its totient is φ = 8761707360.

The previous prime is 13886230727. The next prime is 13886230753. The reversal of 13886230731 is 13703268831.

It is not a de Polignac number, because 13886230731 - 22 = 13886230727 is a prime.

It is a super-2 number, since 2×138862307312 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13886230711) 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 15 ways as a sum of consecutive naturals, for example, 59380 + ... + 176913.

It is an arithmetic number, because the mean of its divisors is an integer number (1219277040).

Almost surely, 213886230731 is an apocalyptic number.

13886230731 is a deficient number, since it is larger than the sum of its proper divisors (5622201909).

13886230731 is a wasteful number, since it uses less digits than its factorization.

13886230731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237346.

The product of its (nonzero) digits is 145152, while the sum is 42.

The spelling of 13886230731 in words is "thirteen billion, eight hundred eighty-six million, two hundred thirty thousand, seven hundred thirty-one".

Divisors: 1 3 19 57 1031 3093 19589 58767 236293 708879 4489567 13468701 243618083 730854249 4628743577 13886230731