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828125568 = 27323123189
BaseRepresentation
bin110001010111000…
…011000110000000
32010201021010201100
4301113003012000
53144000004233
6214101334400
726343644154
oct6127030600
92121233640
10828125568
11395500aa6
121b1407400
1310274c93a
147bdab064
154ca80813
hex315c3180

828125568 has 96 divisors (see below), whose sum is σ = 2459995200. Its totient is φ = 267125760.

The previous prime is 828125567. The next prime is 828125579. The reversal of 828125568 is 865521828.

828125568 is a `hidden beast` number, since 8 + 2 + 81 + 2 + 5 + 568 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (828125567) 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 11 ways as a sum of consecutive naturals, for example, 24118 + ... + 47306.

It is an arithmetic number, because the mean of its divisors is an integer number (25624950).

Almost surely, 2828125568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 828125568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1229997600).

828125568 is an abundant number, since it is smaller than the sum of its proper divisors (1631869632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

828125568 is a wasteful number, since it uses less digits than its factorization.

828125568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23240 (or 23225 counting only the distinct ones).

The product of its digits is 307200, while the sum is 45.

The square root of 828125568 is about 28777.1709519890. The cubic root of 828125568 is about 939.0716532541.

The spelling of 828125568 in words is "eight hundred twenty-eight million, one hundred twenty-five thousand, five hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 31 32 36 48 62 64 72 93 96 124 128 144 186 192 248 279 288 372 384 496 558 576 744 992 1116 1152 1488 1984 2232 2976 3968 4464 5952 8928 11904 17856 23189 35712 46378 69567 92756 139134 185512 208701 278268 371024 417402 556536 718859 742048 834804 1113072 1437718 1484096 1669608 2156577 2226144 2875436 2968192 3339216 4313154 4452288 5750872 6469731 6678432 8626308 8904576 11501744 12939462 13356864 17252616 23003488 25878924 26713728 34505232 46006976 51757848 69010464 92013952 103515696 138020928 207031392 276041856 414062784 828125568