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810132164 = 22530938149
BaseRepresentation
bin110000010010011…
…010001011000100
32002110101222101222
4300102122023010
53124343212124
6212215535512
726035003232
oct6022321304
92073358358
10810132164
11386331316
121a738a598
13cbabc95a
1479845952
154b1c925e
hex3049a2c4

810132164 has 12 divisors (see below), whose sum is σ = 1418035500. Its totient is φ = 404979168.

The previous prime is 810132163. The next prime is 810132181. The reversal of 810132164 is 461231018.

It can be written as a sum of positive squares in 2 ways, for example, as 304781764 + 505350400 = 17458^2 + 22480^2 .

It is not an unprimeable number, because it can be changed into a prime (810132163) 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, 2162 + ... + 40310.

It is an arithmetic number, because the mean of its divisors is an integer number (118169625).

Almost surely, 2810132164 is an apocalyptic number.

It is an amenable number.

810132164 is a deficient number, since it is larger than the sum of its proper divisors (607903336).

810132164 is a wasteful number, since it uses less digits than its factorization.

810132164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43462 (or 43460 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 810132164 is about 28462.8207316141. The cubic root of 810132164 is about 932.2204483224.

The spelling of 810132164 in words is "eight hundred ten million, one hundred thirty-two thousand, one hundred sixty-four".

Divisors: 1 2 4 5309 10618 21236 38149 76298 152596 202533041 405066082 810132164