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30881123404 = 22127118151473
BaseRepresentation
bin11100110000101010…
…001000110001001100
32221201011021121110021
4130300222020301030
51001221031422104
622104145351524
72142156134515
oct346052106114
987634247407
1030881123404
111210765309a
125b9a0385a4
132bb1aac7b1
1416cd48da0c
15c0b177754
hex730a88c4c

30881123404 has 24 divisors (see below), whose sum is σ = 54514672128. Its totient is φ = 15305713920.

The previous prime is 30881123393. The next prime is 30881123411. The reversal of 30881123404 is 40432118803.

It is a self number, because there is not a number n which added to its sum of digits gives 30881123404.

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, 574212 + ... + 625684.

It is an arithmetic number, because the mean of its divisors is an integer number (2271444672).

Almost surely, 230881123404 is an apocalyptic number.

It is an amenable number.

30881123404 is a deficient number, since it is larger than the sum of its proper divisors (23633548724).

30881123404 is a wasteful number, since it uses less digits than its factorization.

30881123404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52785 (or 52783 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The spelling of 30881123404 in words is "thirty billion, eight hundred eighty-one million, one hundred twenty-three thousand, four hundred four".

Divisors: 1 2 4 127 254 508 1181 2362 4724 51473 102946 149987 205892 299974 599948 6537071 13074142 26148284 60789613 121579226 243158452 7720280851 15440561702 30881123404