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13292305 = 5131947229
BaseRepresentation
bin110010101101…
…001100010001
3221000022121121
4302231030101
511400323210
61152522241
7220661035
oct62551421
927008547
1013292305
117559784
124550381
1329a5290
141aa01c5
1512786da
hexcad311

13292305 has 32 divisors (see below), whose sum is σ = 18547200. Its totient is φ = 9061632.

The previous prime is 13292281. The next prime is 13292329. The reversal of 13292305 is 50329231.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13292281) and next prime (13292329).

It is not a de Polignac number, because 13292305 - 29 = 13291793 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13292305.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57931 + ... + 58159.

It is an arithmetic number, because the mean of its divisors is an integer number (579600).

Almost surely, 213292305 is an apocalyptic number.

13292305 is the 2977-th pentagonal number.

It is an amenable number.

13292305 is a deficient number, since it is larger than the sum of its proper divisors (5254895).

13292305 is a wasteful number, since it uses less digits than its factorization.

13292305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 13292305 is about 3645.8613522733. The cubic root of 13292305 is about 236.8827480566.

The spelling of 13292305 in words is "thirteen million, two hundred ninety-two thousand, three hundred five".

Divisors: 1 5 13 19 47 65 95 229 235 247 611 893 1145 1235 2977 3055 4351 4465 10763 11609 14885 21755 53815 56563 58045 139919 204497 282815 699595 1022485 2658461 13292305