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664010536 = 23711857331
BaseRepresentation
bin100111100100111…
…111111100101000
31201021110020012211
4213210333330220
52324441314121
6145520014504
722311665530
oct4744777450
91637406184
10664010536
113108a8a42
12166461434
13a774b157
146428a4c0
153d463ce1
hex2793ff28

664010536 has 16 divisors (see below), whose sum is σ = 1422879840. Its totient is φ = 284575920.

The previous prime is 664010527. The next prime is 664010561. The reversal of 664010536 is 635010466.

It is a junction number, because it is equal to n+sod(n) for n = 664010498 and 664010507.

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, 5928610 + ... + 5928721.

It is an arithmetic number, because the mean of its divisors is an integer number (88929990).

Almost surely, 2664010536 is an apocalyptic number.

It is an amenable number.

664010536 is an abundant number, since it is smaller than the sum of its proper divisors (758869304).

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

664010536 is a wasteful number, since it uses less digits than its factorization.

664010536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11857344 (or 11857340 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 664010536 is about 25768.4018906877. The cubic root of 664010536 is about 872.4187486016.

The spelling of 664010536 in words is "six hundred sixty-four million, ten thousand, five hundred thirty-six".

Divisors: 1 2 4 7 8 14 28 56 11857331 23714662 47429324 83001317 94858648 166002634 332005268 664010536