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10638512 = 242328909
BaseRepresentation
bin101000100101…
…010010110000
3202000111021222
4220211102300
510210413022
61020004212
7156266033
oct50452260
922014258
1010638512
116006965
123690668
1322863a1
1415ad01a
15e02242
hexa254b0

10638512 has 20 divisors (see below), whose sum is σ = 21509040. Its totient is φ = 5087808.

The previous prime is 10638491. The next prime is 10638517. The reversal of 10638512 is 21583601.

It is a super-2 number, since 2×106385122 = 226355875148288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10638517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14087 + ... + 14822.

It is an arithmetic number, because the mean of its divisors is an integer number (1075452).

Almost surely, 210638512 is an apocalyptic number.

It is an amenable number.

10638512 is an abundant number, since it is smaller than the sum of its proper divisors (10870528).

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

10638512 is a wasteful number, since it uses less digits than its factorization.

10638512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28940 (or 28934 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 10638512 is about 3261.6731902507. The cubic root of 10638512 is about 219.9346362292.

The spelling of 10638512 in words is "ten million, six hundred thirty-eight thousand, five hundred twelve".

Divisors: 1 2 4 8 16 23 46 92 184 368 28909 57818 115636 231272 462544 664907 1329814 2659628 5319256 10638512