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31367031120 = 24325433492903
BaseRepresentation
bin11101001101100111…
…101110100101010000
32222222000121021112100
4131031213232211100
51003214424443440
622224304200400
72160206236215
oct351547564520
988860537470
1031367031120
1112336964817
1260b4909100
132c5b66c459
141737c17b0c
15c38b5a230
hex74d9ee950

31367031120 has 240 divisors, whose sum is σ = 108136828800. Its totient is φ = 8143801344.

The previous prime is 31367031079. The next prime is 31367031151. The reversal of 31367031120 is 2113076313.

It is a tau number, because it is divible by the number of its divisors (240).

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 10803589 + ... + 10806491.

It is an arithmetic number, because the mean of its divisors is an integer number (450570120).

Almost surely, 231367031120 is an apocalyptic number.

31367031120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31367031120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54068414400).

31367031120 is an abundant number, since it is smaller than the sum of its proper divisors (76769797680).

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

31367031120 is a wasteful number, since it uses less digits than its factorization.

31367031120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3314 (or 3305 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The spelling of 31367031120 in words is "thirty-one billion, three hundred sixty-seven million, thirty-one thousand, one hundred twenty".