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30637711868 = 22591069112143
BaseRepresentation
bin11100100010001001…
…100110000111111100
32221002012021000121012
4130202021212013330
51000221223234433
622024052254352
72133142153061
oct344211460774
987065230535
1030637711868
1111aa220a435
125b306113b8
132b73535bba
1416a900ac68
15be4ae5848
hex7222661fc

30637711868 has 24 divisors (see below), whose sum is σ = 54534332160. Its totient is φ = 15056565680.

The previous prime is 30637711837. The next prime is 30637711889. The reversal of 30637711868 is 86811773603.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2517005 + ... + 2529147.

It is an arithmetic number, because the mean of its divisors is an integer number (2272263840).

Almost surely, 230637711868 is an apocalyptic number.

It is an amenable number.

30637711868 is a deficient number, since it is larger than the sum of its proper divisors (23896620292).

30637711868 is a wasteful number, since it uses less digits than its factorization.

30637711868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22897 (or 22895 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 50.

The spelling of 30637711868 in words is "thirty billion, six hundred thirty-seven million, seven hundred eleven thousand, eight hundred sixty-eight".

Divisors: 1 2 4 59 118 236 10691 12143 21382 24286 42764 48572 630769 716437 1261538 1432874 2523076 2865748 129820813 259641626 519283252 7659427967 15318855934 30637711868