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90312937060 = 2254515646853
BaseRepresentation
bin101010000011100010…
…0100000111001100100
322122010001201120001211
41110013010200321210
52434430102441220
6105253355401204
76345016204333
oct1240704407144
9278101646054
1090312937060
1135335331365
1215605753204
1386938cc738
14452a6bbd1a
152538a93b5a
hex1507120e64

90312937060 has 12 divisors (see below), whose sum is σ = 189657167868. Its totient is φ = 36125174816.

The previous prime is 90312936983. The next prime is 90312937147. The reversal of 90312937060 is 6073921309.

It can be written as a sum of positive squares in 2 ways, for example, as 20079456804 + 70233480256 = 141702^2 + 265016^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2257823407 + ... + 2257823446.

It is an arithmetic number, because the mean of its divisors is an integer number (15804763989).

Almost surely, 290312937060 is an apocalyptic number.

It is an amenable number.

90312937060 is an abundant number, since it is smaller than the sum of its proper divisors (99344230808).

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

90312937060 is a wasteful number, since it uses less digits than its factorization.

90312937060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4515646862 (or 4515646860 counting only the distinct ones).

The product of its (nonzero) digits is 61236, while the sum is 40.

The spelling of 90312937060 in words is "ninety billion, three hundred twelve million, nine hundred thirty-seven thousand, sixty".

Divisors: 1 2 4 5 10 20 4515646853 9031293706 18062587412 22578234265 45156468530 90312937060