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28029765024 = 2532149964927
BaseRepresentation
bin11010000110101101…
…000100010110100000
32200100102221121002100
4122012231010112200
5424401104440044
620513211050400
72011414033362
oct320655042640
980312847070
1028029765024
1110984087368
125523140a00
13284913caa1
1414dc8dad32
15ae0b95869
hex686b445a0

28029765024 has 72 divisors (see below), whose sum is σ = 79764048000. Its totient is φ = 9336878208.

The previous prime is 28029764989. The next prime is 28029765059. The reversal of 28029765024 is 42056792082.

28029765024 is a `hidden beast` number, since 280 + 297 + 65 + 0 + 24 = 666.

It is an interprime number because it is at equal distance from previous prime (28029764989) and next prime (28029765059).

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 399249 + ... + 464175.

It is an arithmetic number, because the mean of its divisors is an integer number (1107834000).

Almost surely, 228029765024 is an apocalyptic number.

28029765024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28029765024 is an abundant number, since it is smaller than the sum of its proper divisors (51734282976).

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

28029765024 is a wasteful number, since it uses less digits than its factorization.

28029765024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66442 (or 66431 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 28029765024 in words is "twenty-eight billion, twenty-nine million, seven hundred sixty-five thousand, twenty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 96 144 288 1499 2998 4497 5996 8994 11992 13491 17988 23984 26982 35976 47968 53964 64927 71952 107928 129854 143904 194781 215856 259708 389562 431712 519416 584343 779124 1038832 1168686 1558248 2077664 2337372 3116496 4674744 6232992 9349488 18698976 97325573 194651146 291976719 389302292 583953438 778604584 875930157 1167906876 1557209168 1751860314 2335813752 3114418336 3503720628 4671627504 7007441256 9343255008 14014882512 28029765024