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64312974404 = 22718043127301
BaseRepresentation
bin111011111001010110…
…100001110001000100
320011000002012121100222
4323321112201301010
52023203110140104
645313414123512
74434510156050
oct737126416104
9204002177328
1064312974404
1125302aa7618
121056a350598
1360ac170053
1431815d6c60
151a161eb1be
hexef95a1c44

64312974404 has 24 divisors (see below), whose sum is σ = 128634088128. Its totient is φ = 27560959200.

The previous prime is 64312974373. The next prime is 64312974421. The reversal of 64312974404 is 40447921346.

64312974404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 441554 + ... + 568854.

It is an arithmetic number, because the mean of its divisors is an integer number (5359753672).

Almost surely, 264312974404 is an apocalyptic number.

It is an amenable number.

64312974404 is an abundant number, since it is smaller than the sum of its proper divisors (64321113724).

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

64312974404 is a wasteful number, since it uses less digits than its factorization.

64312974404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145355 (or 145353 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 44.

The spelling of 64312974404 in words is "sixty-four billion, three hundred twelve million, nine hundred seventy-four thousand, four hundred four".

Divisors: 1 2 4 7 14 28 18043 36086 72172 126301 127301 252602 254602 505204 509204 891107 1782214 3564428 2296891943 4593783886 9187567772 16078243601 32156487202 64312974404