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30431431110 = 2351014381037
BaseRepresentation
bin11100010101110110…
…101100100111000110
32220112211002212121010
4130111312230213012
5444310421243420
621551403103050
72125055616333
oct342566544706
986484085533
1030431431110
11119a6827673
125a93511a86
132b3c88cb92
14168987198a
15bd194a4e0
hex715dac9c6

30431431110 has 16 divisors (see below), whose sum is σ = 73035434736. Its totient is φ = 8115048288.

The previous prime is 30431431109. The next prime is 30431431117. The reversal of 30431431110 is 1113413403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30431431117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 507190489 + ... + 507190548.

It is an arithmetic number, because the mean of its divisors is an integer number (4564714671).

Almost surely, 230431431110 is an apocalyptic number.

30431431110 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30431431110 is an abundant number, since it is smaller than the sum of its proper divisors (42604003626).

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

30431431110 is a wasteful number, since it uses less digits than its factorization.

30431431110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014381047.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 30431431110 its reverse (1113413403), we get a palindrome (31544844513).

The spelling of 30431431110 in words is "thirty billion, four hundred thirty-one million, four hundred thirty-one thousand, one hundred ten".

Divisors: 1 2 3 5 6 10 15 30 1014381037 2028762074 3043143111 5071905185 6086286222 10143810370 15215715555 30431431110