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31300525011 = 373089482519
BaseRepresentation
bin11101001001101010…
…000001101111010011
32222210101110102022010
4131021222001233103
51003100413300021
622213530514003
72155441033650
oct351152015723
988711412263
1031300525011
111230236a798
126096595903
132c4a955022
14172d064c27
15c32dbe976
hex749a81bd3

31300525011 has 16 divisors (see below), whose sum is σ = 47711577600. Its totient is φ = 17880187008.

The previous prime is 31300524991. The next prime is 31300525019. The reversal of 31300525011 is 11052500313.

It is not a de Polignac number, because 31300525011 - 27 = 31300524883 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (31300525019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176391 + ... + 306128.

It is an arithmetic number, because the mean of its divisors is an integer number (2981973600).

Almost surely, 231300525011 is an apocalyptic number.

31300525011 is a deficient number, since it is larger than the sum of its proper divisors (16411052589).

31300525011 is a wasteful number, since it uses less digits than its factorization.

31300525011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485618.

The product of its (nonzero) digits is 450, while the sum is 21.

The spelling of 31300525011 in words is "thirty-one billion, three hundred million, five hundred twenty-five thousand, eleven".

Divisors: 1 3 7 21 3089 9267 21623 64869 482519 1447557 3377633 10132899 1490501191 4471503573 10433508337 31300525011