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31359798904 = 23722941611103
BaseRepresentation
bin11101001101001100…
…001000111001111000
32222221111222211210111
4131031030020321320
51003211102031104
622223445154104
72160060615100
oct351514107170
988844884714
1031359798904
1112332875085
1260b23bb934
132c5a009635
141736c94200
15c381cc404
hex74d308e78

31359798904 has 192 divisors, whose sum is σ = 73739030400. Its totient is φ = 12441139200.

The previous prime is 31359798881. The next prime is 31359798913. The reversal of 31359798904 is 40989795313.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28430817 + ... + 28431919.

It is an arithmetic number, because the mean of its divisors is an integer number (384057450).

Almost surely, 231359798904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31359798904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36869515200).

31359798904 is an abundant number, since it is smaller than the sum of its proper divisors (42379231496).

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

31359798904 is a wasteful number, since it uses less digits than its factorization.

31359798904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254 (or 1243 counting only the distinct ones).

The product of its (nonzero) digits is 7348320, while the sum is 58.

The spelling of 31359798904 in words is "thirty-one billion, three hundred fifty-nine million, seven hundred ninety-eight thousand, nine hundred four".