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10639370 = 257221713
BaseRepresentation
bin101000100101…
…100000001010
3202000112110202
4220211200022
510210424440
61020012202
7156301400
oct50454012
922015422
1010639370
116007575
123691062
1322868b1
1415ad470
15e02615
hexa2580a

10639370 has 24 divisors (see below), whose sum is σ = 22278564. Its totient is φ = 3647616.

The previous prime is 10639351. The next prime is 10639397. The reversal of 10639370 is 7393601.

It can be written as a sum of positive squares in 2 ways, for example, as 10233601 + 405769 = 3199^2 + 637^2 .

It is a super-2 number, since 2×106393702 = 226392387993800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10367 + ... + 11346.

Almost surely, 210639370 is an apocalyptic number.

10639370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10639370 is an abundant number, since it is smaller than the sum of its proper divisors (11639194).

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

10639370 is a wasteful number, since it uses less digits than its factorization.

10639370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21734 (or 21727 counting only the distinct ones).

The product of its (nonzero) digits is 3402, while the sum is 29.

The square root of 10639370 is about 3261.8047151845. The cubic root of 10639370 is about 219.9405486740.

The spelling of 10639370 in words is "ten million, six hundred thirty-nine thousand, three hundred seventy".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 490 21713 43426 108565 151991 217130 303982 759955 1063937 1519910 2127874 5319685 10639370