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30881351226 = 23112160121661
BaseRepresentation
bin11100110000101011…
…000000011000111010
32221201011201011222010
4130300223000120322
51001221111214401
622104154310350
72142161103645
oct346053003072
987634634863
1030881351226
1112107799280
125b9a1283b6
132bb1b5c3bb
1416cd50ca5c
15c0b1beed6
hex730ac063a

30881351226 has 32 divisors (see below), whose sum is σ = 67383723456. Its totient is φ = 9357120000.

The previous prime is 30881351183. The next prime is 30881351353. The reversal of 30881351226 is 62215318803.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1414836 + ... + 1436496.

It is an arithmetic number, because the mean of its divisors is an integer number (2105741358).

Almost surely, 230881351226 is an apocalyptic number.

30881351226 is an abundant number, since it is smaller than the sum of its proper divisors (36502372230).

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

30881351226 is a wasteful number, since it uses less digits than its factorization.

30881351226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43278.

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 30881351226 in words is "thirty billion, eight hundred eighty-one million, three hundred fifty-one thousand, two hundred twenty-six".

Divisors: 1 2 3 6 11 22 33 66 21601 21661 43202 43322 64803 64983 129606 129966 237611 238271 475222 476542 712833 714813 1425666 1429626 467899261 935798522 1403697783 2807395566 5146891871 10293783742 15440675613 30881351226