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15230564 = 2213727793
BaseRepresentation
bin111010000110…
…011001100100
31001122210101222
4322012121210
512344334224
61302235512
7243312656
oct72063144
931583358
1015230564
118662a48
125125b98
13320358b
1420466d6
15150cb5e
hexe86664

15230564 has 12 divisors (see below), whose sum is σ = 26849004. Its totient is φ = 7559424.

The previous prime is 15230563. The next prime is 15230581. The reversal of 15230564 is 46503251.

It can be written as a sum of positive squares in 2 ways, for example, as 3724900 + 11505664 = 1930^2 + 3392^2 .

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (15230563) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 13349 + ... + 14444.

It is an arithmetic number, because the mean of its divisors is an integer number (2237417).

Almost surely, 215230564 is an apocalyptic number.

It is an amenable number.

15230564 is a deficient number, since it is larger than the sum of its proper divisors (11618440).

15230564 is a wasteful number, since it uses less digits than its factorization.

15230564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27934 (or 27932 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 15230564 is about 3902.6355197482. The cubic root of 15230564 is about 247.8783873044.

The spelling of 15230564 in words is "fifteen million, two hundred thirty thousand, five hundred sixty-four".

Divisors: 1 2 4 137 274 548 27793 55586 111172 3807641 7615282 15230564