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31101130324 = 22111937202309
BaseRepresentation
bin11100111101110001…
…011001011001010100
32222021111021010012201
4130331301121121110
51002143342132244
622142045054244
72150500150225
oct347561313124
988244233181
1031101130324
111220a8605a0
12603b857384
132c185503c4
14171079d24c
15c20634ad4
hex73dc59654

31101130324 has 24 divisors (see below), whose sum is σ = 62499880800. Its totient is φ = 13392830880.

The previous prime is 31101130261. The next prime is 31101130327. The reversal of 31101130324 is 42303110113.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31101130327) 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, 18600319 + ... + 18601990.

It is an arithmetic number, because the mean of its divisors is an integer number (2604161700).

Almost surely, 231101130324 is an apocalyptic number.

It is an amenable number.

31101130324 is an abundant number, since it is smaller than the sum of its proper divisors (31398750476).

31101130324 is a wasteful number, since it uses less digits than its factorization.

31101130324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37202343 (or 37202341 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 31101130324 its reverse (42303110113), we get a palindrome (73404240437).

The spelling of 31101130324 in words is "thirty-one billion, one hundred one million, one hundred thirty thousand, three hundred twenty-four".

Divisors: 1 2 4 11 19 22 38 44 76 209 418 836 37202309 74404618 148809236 409225399 706843871 818450798 1413687742 1636901596 2827375484 7775282581 15550565162 31101130324