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64108415244 = 22341130301657
BaseRepresentation
bin111011101101001010…
…001100100100001100
320010110211021220221210
4323231022030210030
52022243223241434
645241225454420
74426444352466
oct735512144414
9203424256853
1064108415244
1125208590265
1210511941410
13607897a823
143162389136
151a03290ee9
hexeed28c90c

64108415244 has 24 divisors (see below), whose sum is σ = 153234749808. Its totient is φ = 20848264960.

The previous prime is 64108415213. The next prime is 64108415249. The reversal of 64108415244 is 44251480146.

It is not an unprimeable number, because it can be changed into a prime (64108415249) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 65150337 + ... + 65151320.

It is an arithmetic number, because the mean of its divisors is an integer number (6384781242).

Almost surely, 264108415244 is an apocalyptic number.

It is an amenable number.

64108415244 is an abundant number, since it is smaller than the sum of its proper divisors (89126334564).

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

64108415244 is a wasteful number, since it uses less digits than its factorization.

64108415244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130301705 (or 130301703 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 39.

The spelling of 64108415244 in words is "sixty-four billion, one hundred eight million, four hundred fifteen thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 12 41 82 123 164 246 492 130301657 260603314 390904971 521206628 781809942 1563619884 5342367937 10684735874 16027103811 21369471748 32054207622 64108415244