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23127308838 = 2336712750333
BaseRepresentation
bin10101100010011111…
…101011101000100110
32012200210010000111000
4111202133223220212
5334331042340323
614342522254130
71446054611244
oct254237535046
965623100430
1023127308838
119898843487
124595357346
132247574a3a
14119578b794
159055aae43
hex5627eba26

23127308838 has 64 divisors (see below), whose sum is σ = 52572856320. Its totient is φ = 7534096416.

The previous prime is 23127308797. The next prime is 23127308843. The reversal of 23127308838 is 83880372132.

It is a junction number, because it is equal to n+sod(n) for n = 23127308793 and 23127308802.

It is a congruent number.

It is an unprimeable number.

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, 434320 + ... + 484652.

It is an arithmetic number, because the mean of its divisors is an integer number (821450880).

Almost surely, 223127308838 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23127308838, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26286428160).

23127308838 is an abundant number, since it is smaller than the sum of its proper divisors (29445547482).

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

23127308838 is a wasteful number, since it uses less digits than its factorization.

23127308838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50538 (or 50532 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 23127308838 in words is "twenty-three billion, one hundred twenty-seven million, three hundred eight thousand, eight hundred thirty-eight".

Divisors: 1 2 3 6 9 18 27 54 67 127 134 201 254 381 402 603 762 1143 1206 1809 2286 3429 3618 6858 8509 17018 25527 50333 51054 76581 100666 150999 153162 229743 301998 452997 459486 905994 1358991 2717982 3372311 6392291 6744622 10116933 12784582 19176873 20233866 30350799 38353746 57530619 60701598 91052397 115061238 172591857 182104794 345183714 428283497 856566994 1284850491 2569700982 3854551473 7709102946 11563654419 23127308838