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664013010 = 23526938219
BaseRepresentation
bin100111100101000…
…000100011010010
31201021110100121110
4213211000203102
52324441404020
6145520034150
722312005663
oct4745004322
91637410543
10664013010
113108aa891
12166462956
13a774c30b
146428b36a
153d4648e0
hex279408d2

664013010 has 32 divisors (see below), whose sum is σ = 1594416960. Its totient is φ = 176982848.

The previous prime is 664012961. The next prime is 664013011. The reversal of 664013010 is 10310466.

It is not an unprimeable number, because it can be changed into a prime (664013011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76681 + ... + 84899.

It is an arithmetic number, because the mean of its divisors is an integer number (49825530).

Almost surely, 2664013010 is an apocalyptic number.

664013010 is an abundant number, since it is smaller than the sum of its proper divisors (930403950).

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

664013010 is a wasteful number, since it uses less digits than its factorization.

664013010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10922.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 664013010 is about 25768.4498951722. The cubic root of 664013010 is about 872.4198320991.

Adding to 664013010 its reverse (10310466), we get a palindrome (674323476).

The spelling of 664013010 in words is "six hundred sixty-four million, thirteen thousand, ten".

Divisors: 1 2 3 5 6 10 15 30 2693 5386 8079 8219 13465 16158 16438 24657 26930 40395 41095 49314 80790 82190 123285 246570 22133767 44267534 66401301 110668835 132802602 221337670 332006505 664013010