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64252164460 = 22511292055293
BaseRepresentation
bin111011110101101110…
…100011100101101100
320010211211210010210211
4323311232203211230
52023042023230320
645303402512204
74433141246431
oct736556434554
9203754703724
1064252164460
1125281743170
1210551b05664
13609c69b533
1431774c7b88
151a10bd855a
hexef5ba396c

64252164460 has 24 divisors (see below), whose sum is σ = 147195868176. Its totient is φ = 23364423360.

The previous prime is 64252164421. The next prime is 64252164499. The reversal of 64252164460 is 6446125246.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (64252164421) and next prime (64252164499).

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, 146027427 + ... + 146027866.

It is an arithmetic number, because the mean of its divisors is an integer number (6133161174).

Almost surely, 264252164460 is an apocalyptic number.

It is an amenable number.

64252164460 is an abundant number, since it is smaller than the sum of its proper divisors (82943703716).

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

64252164460 is a wasteful number, since it uses less digits than its factorization.

64252164460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292055313 (or 292055311 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 40.

The spelling of 64252164460 in words is "sixty-four billion, two hundred fifty-two million, one hundred sixty-four thousand, four hundred sixty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 292055293 584110586 1168221172 1460276465 2920552930 3212608223 5841105860 6425216446 12850432892 16063041115 32126082230 64252164460