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30888824807 = 149320689099
BaseRepresentation
bin11100110001000111…
…100000111111100111
32221201200202212210102
4130301013200333213
51001230014343212
622105022414315
72142311451551
oct346107407747
987650685712
1030888824807
1112110a33295
125ba073139b
132bb3578039
1416d04d64d1
15c0bb995c2
hex7311e0fe7

30888824807 has 4 divisors (see below), whose sum is σ = 30909515400. Its totient is φ = 30868134216.

The previous prime is 30888824767. The next prime is 30888824819. The reversal of 30888824807 is 70842888803.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30888824807 - 210 = 30888823783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30888824867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10343057 + ... + 10346042.

It is an arithmetic number, because the mean of its divisors is an integer number (7727378850).

Almost surely, 230888824807 is an apocalyptic number.

30888824807 is a deficient number, since it is larger than the sum of its proper divisors (20690593).

30888824807 is a wasteful number, since it uses less digits than its factorization.

30888824807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20690592.

The product of its (nonzero) digits is 5505024, while the sum is 56.

The spelling of 30888824807 in words is "thirty billion, eight hundred eighty-eight million, eight hundred twenty-four thousand, eight hundred seven".

Divisors: 1 1493 20689099 30888824807