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30638238284 = 2231372441683
BaseRepresentation
bin11100100010001011…
…100110101001001100
32221002020020202201002
4130202023212221030
51000221342111114
622024111435432
72133146504603
oct344213465114
987066222632
1030638238284
1111aa2539995
125b30825b78
132b7368b6a4
1416a9106a3a
15be4b9b7de
hex7222e6a4c

30638238284 has 12 divisors (see below), whose sum is σ = 53634030744. Its totient is φ = 15314229504.

The previous prime is 30638238271. The next prime is 30638238347. The reversal of 30638238284 is 48283283603.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1208294 + ... + 1233389.

It is an arithmetic number, because the mean of its divisors is an integer number (4469502562).

Almost surely, 230638238284 is an apocalyptic number.

It is an amenable number.

30638238284 is a deficient number, since it is larger than the sum of its proper divisors (22995792460).

30638238284 is a wasteful number, since it uses less digits than its factorization.

30638238284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2444824 (or 2444822 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 47.

The spelling of 30638238284 in words is "thirty billion, six hundred thirty-eight million, two hundred thirty-eight thousand, two hundred eighty-four".

Divisors: 1 2 4 3137 6274 12548 2441683 4883366 9766732 7659559571 15319119142 30638238284