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8825728464 = 243372918561
BaseRepresentation
bin10000011100000110…
…11110110111010000
3211210002011110102000
420032003132313100
5121033341302324
64015433554000
7431465311530
oct101603366720
924702143360
108825728464
113819991473
121863875900
13aa8633947
145da20d4c0
15369c559c9
hex20e0dedd0

8825728464 has 80 divisors (see below), whose sum is σ = 28952135040. Its totient is φ = 2521635840.

The previous prime is 8825728421. The next prime is 8825728469. The reversal of 8825728464 is 4648275288.

8825728464 is a `hidden beast` number, since 8 + 8 + 2 + 572 + 8 + 4 + 64 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 8825728464.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8825728469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1456257 + ... + 1462304.

It is an arithmetic number, because the mean of its divisors is an integer number (361901688).

Almost surely, 28825728464 is an apocalyptic number.

8825728464 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

8825728464 is an abundant number, since it is smaller than the sum of its proper divisors (20126406576).

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

8825728464 is a wasteful number, since it uses less digits than its factorization.

8825728464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2918585 (or 2918573 counting only the distinct ones).

The product of its digits is 6881280, while the sum is 54.

The square root of 8825728464 is about 93945.3482829246. The cubic root of 8825728464 is about 2066.5703173026.

The spelling of 8825728464 in words is "eight billion, eight hundred twenty-five million, seven hundred twenty-eight thousand, four hundred sixty-four".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 36 42 48 54 56 63 72 84 108 112 126 144 168 189 216 252 336 378 432 504 756 1008 1512 3024 2918561 5837122 8755683 11674244 17511366 20429927 23348488 26267049 35022732 40859854 46696976 52534098 61289781 70045464 78801147 81719708 105068196 122579562 140090928 157602294 163439416 183869343 210136392 245159124 315204588 326878832 367738686 420272784 490318248 551608029 630409176 735477372 980636496 1103216058 1260818352 1470954744 2206432116 2941909488 4412864232 8825728464