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810080452 = 221378531733
BaseRepresentation
bin110000010010001…
…101100011000100
32002110022100110201
4300102031203010
53124340033302
6212214500244
726034366406
oct6022154304
92073270421
10810080452
113862a6485
121a7364684
13cbaa225c
1479830b76
154b1b8c87
hex3048d8c4

810080452 has 24 divisors (see below), whose sum is σ = 1430487576. Its totient is φ = 401380608.

The previous prime is 810080449. The next prime is 810080473. The reversal of 810080452 is 254080018.

It can be written as a sum of positive squares in 4 ways, for example, as 15178816 + 794901636 = 3896^2 + 28194^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 810080452.

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 7 ways as a sum of consecutive naturals, for example, 466578 + ... + 468310.

It is an arithmetic number, because the mean of its divisors is an integer number (59603649).

Almost surely, 2810080452 is an apocalyptic number.

It is an amenable number.

810080452 is a deficient number, since it is larger than the sum of its proper divisors (620407124).

810080452 is a wasteful number, since it uses less digits than its factorization.

810080452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2727 (or 2725 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 810080452 is about 28461.9123039897. The cubic root of 810080452 is about 932.2006128718.

The spelling of 810080452 in words is "eight hundred ten million, eighty thousand, four hundred fifty-two".

Divisors: 1 2 4 137 274 548 853 1706 1733 3412 3466 6932 116861 233722 237421 467444 474842 949684 1478249 2956498 5912996 202520113 405040226 810080452