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30611396892 = 2237334944517
BaseRepresentation
bin11100100000100101…
…001101100100011100
32221000100202002020110
4130200211031210130
51000143004200032
622021312250020
72132402403036
oct344045154434
987010662213
1030611396892
1111a8937661a
125b23840910
132b6ac512cb
1416a571ac56
15be26487cc
hex72094d91c

30611396892 has 24 divisors (see below), whose sum is σ = 72405041296. Its totient is φ = 10064020608.

The previous prime is 30611396873. The next prime is 30611396909. The reversal of 30611396892 is 29869311603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17471383 + ... + 17473134.

Almost surely, 230611396892 is an apocalyptic number.

It is an amenable number.

30611396892 is an abundant number, since it is smaller than the sum of its proper divisors (41793644404).

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

30611396892 is a wasteful number, since it uses less digits than its factorization.

30611396892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34944597 (or 34944595 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 48.

The spelling of 30611396892 in words is "thirty billion, six hundred eleven million, three hundred ninety-six thousand, eight hundred ninety-two".

Divisors: 1 2 3 4 6 12 73 146 219 292 438 876 34944517 69889034 104833551 139778068 209667102 419334204 2550949741 5101899482 7652849223 10203798964 15305698446 30611396892