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10638664084 = 2215791684399
BaseRepresentation
bin10011110100001110…
…10010000110010100
31000110102112010112201
421322013102012110
5133241444222314
64515355254244
7524431103236
oct117207220624
930412463481
1010638664084
11456a280874
12208aa4a384
131007102809
1472ccd2256
15423eb6b74
hex27a1d2194

10638664084 has 12 divisors (see below), whose sum is σ = 18629464000. Its totient is φ = 5315960088.

The previous prime is 10638664067. The next prime is 10638664147. The reversal of 10638664084 is 48046683601.

It is a super-2 number, since 2×106386640842 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 835884 + ... + 848515.

Almost surely, 210638664084 is an apocalyptic number.

It is an amenable number.

10638664084 is a deficient number, since it is larger than the sum of its proper divisors (7990799916).

10638664084 is a wasteful number, since it uses less digits than its factorization.

10638664084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1685982 (or 1685980 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 46.

The spelling of 10638664084 in words is "ten billion, six hundred thirty-eight million, six hundred sixty-four thousand, eighty-four".

Divisors: 1 2 4 1579 3158 6316 1684399 3368798 6737596 2659666021 5319332042 10638664084