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13292890 = 2513102253
BaseRepresentation
bin110010101101…
…010101011010
3221000100102021
4302231111122
511400333030
61152525054
7220662532
oct62552532
927010367
1013292890
11755a166
12455078a
1329a5620
141aa04c2
15127897a
hexcad55a

13292890 has 16 divisors (see below), whose sum is σ = 25768008. Its totient is φ = 4908096.

The previous prime is 13292863. The next prime is 13292947. The reversal of 13292890 is 9829231.

It can be written as a sum of positive squares in 4 ways, for example, as 11296321 + 1996569 = 3361^2 + 1413^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50997 + ... + 51256.

Almost surely, 213292890 is an apocalyptic number.

13292890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13292890 is a deficient number, since it is larger than the sum of its proper divisors (12475118).

13292890 is a wasteful number, since it uses less digits than its factorization.

13292890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102273.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 13292890 is about 3645.9415793455. The cubic root of 13292890 is about 236.8862231091.

The spelling of 13292890 in words is "thirteen million, two hundred ninety-two thousand, eight hundred ninety".

Divisors: 1 2 5 10 13 26 65 130 102253 204506 511265 1022530 1329289 2658578 6646445 13292890