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138926430354 = 23171578675311
BaseRepresentation
bin1000000101100010101…
…0010001100010010010
3111021121000120220001110
42001120222101202102
54234010131232404
6143453311314150
713015504113435
oct2013052214222
9437530526043
10138926430354
1153a113913a8
1222b1221b956
131014033659a
146a1cc0d81c
15393185bb89
hex2058a91892

138926430354 has 32 divisors (see below), whose sum is σ = 296071047936. Its totient is φ = 43307147520.

The previous prime is 138926430347. The next prime is 138926430367. The reversal of 138926430354 is 453034629831.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4321642 + ... + 4353669.

It is an arithmetic number, because the mean of its divisors is an integer number (9252220248).

Almost surely, 2138926430354 is an apocalyptic number.

138926430354 is an abundant number, since it is smaller than the sum of its proper divisors (157144617582).

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

138926430354 is a wasteful number, since it uses less digits than its factorization.

138926430354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8675490.

The product of its (nonzero) digits is 1866240, while the sum is 48.

The spelling of 138926430354 in words is "one hundred thirty-eight billion, nine hundred twenty-six million, four hundred thirty thousand, three hundred fifty-four".

Divisors: 1 2 3 6 17 34 51 102 157 314 471 942 2669 5338 8007 16014 8675311 17350622 26025933 52051866 147480287 294960574 442440861 884881722 1362023827 2724047654 4086071481 8172142962 23154405059 46308810118 69463215177 138926430354