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31285060704 = 253389419971
BaseRepresentation
bin11101001000101111…
…000010010001100000
32222202022100202021000
4131020233002101200
51003032433420304
622212215232000
72155162425342
oct351057022140
988668322230
1031285060704
11122a4668177
126091378600
132c4769c251
14172ad9b292
15c31867939
hex748bc2460

31285060704 has 192 divisors, whose sum is σ = 92588832000. Its totient is φ = 10275978240.

The previous prime is 31285060691. The next prime is 31285060711. The reversal of 31285060704 is 40706058213.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32218939 + ... + 32219909.

It is an arithmetic number, because the mean of its divisors is an integer number (482233500).

Almost surely, 231285060704 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 31285060704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46294416000).

31285060704 is an abundant number, since it is smaller than the sum of its proper divisors (61303771296).

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

31285060704 is a wasteful number, since it uses less digits than its factorization.

31285060704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1498 (or 1484 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The spelling of 31285060704 in words is "thirty-one billion, two hundred eighty-five million, sixty thousand, seven hundred four".