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28574736008 = 23713172308883
BaseRepresentation
bin11010100111001011…
…111101111010001000
32201202102101222201212
4122213023331322020
5432010113023013
621043235432252
72031052151150
oct324713757210
981672358655
1028574736008
111113376a105
125655755688
13290500c220
14155103b760
15b239436a8
hex6a72fde88

28574736008 has 64 divisors (see below), whose sum is σ = 69820652160. Its totient is φ = 10639328256.

The previous prime is 28574735993. The next prime is 28574736017. The reversal of 28574736008 is 80063747582.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1142066 + ... + 1166817.

It is an arithmetic number, because the mean of its divisors is an integer number (1090947690).

Almost surely, 228574736008 is an apocalyptic number.

28574736008 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28574736008 is an abundant number, since it is smaller than the sum of its proper divisors (41245916152).

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

28574736008 is a wasteful number, since it uses less digits than its factorization.

28574736008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2308926 (or 2308922 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 50.

The spelling of 28574736008 in words is "twenty-eight billion, five hundred seventy-four million, seven hundred thirty-six thousand, eight".

Divisors: 1 2 4 7 8 13 14 17 26 28 34 52 56 68 91 104 119 136 182 221 238 364 442 476 728 884 952 1547 1768 3094 6188 12376 2308883 4617766 9235532 16162181 18471064 30015479 32324362 39251011 60030958 64648724 78502022 120061916 129297448 157004044 210108353 240123832 274757077 314008088 420216706 510263143 549514154 840433412 1020526286 1099028308 1680866824 2041052572 2198056616 3571842001 4082105144 7143684002 14287368004 28574736008