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30844235388 = 22310324954883
BaseRepresentation
bin11100101110011101…
…011010111001111100
32221121120212111121110
4130232131122321330
51001132111013023
622100351002020
72141230450341
oct345635327174
987546774543
1030844235388
111209884862a
125b89809310
132ba7265575
1416c860a7c8
15c07cdca93
hex72e75ae7c

30844235388 has 24 divisors (see below), whose sum is σ = 72668622208. Its totient is φ = 10181591856.

The previous prime is 30844235351. The next prime is 30844235419. The reversal of 30844235388 is 88353244803.

It is a happy number.

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, 12476206 + ... + 12478677.

Almost surely, 230844235388 is an apocalyptic number.

It is an amenable number.

30844235388 is an abundant number, since it is smaller than the sum of its proper divisors (41824386820).

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

30844235388 is a wasteful number, since it uses less digits than its factorization.

30844235388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24954993 (or 24954991 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 48.

The spelling of 30844235388 in words is "thirty billion, eight hundred forty-four million, two hundred thirty-five thousand, three hundred eighty-eight".

Divisors: 1 2 3 4 6 12 103 206 309 412 618 1236 24954883 49909766 74864649 99819532 149729298 299458596 2570352949 5140705898 7711058847 10281411796 15422117694 30844235388