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28136002934952 = 23331117776663901
BaseRepresentation
bin1100110010110111011000…
…11101011101100010101000
310200121202221102100211211000
412121123230131131202220
512141440013222404302
6135501300141035000
75632521244636443
oct631335435354250
9120552842324730
1028136002934952
118a68459175270
1231a4b42555a60
1312912a1635323
146d3b0b33a65a
1533bd36b7731c
hex1996ec75d8a8

28136002934952 has 128 divisors (see below), whose sum is σ = 85308607843200. Its totient is φ = 8521262208000.

The previous prime is 28136002934891. The next prime is 28136002934983. The reversal of 28136002934952 is 25943920063182.

28136002934952 is a `hidden beast` number, since 2 + 8 + 1 + 3 + 60 + 0 + 2 + 93 + 495 + 2 = 666.

It is a super-2 number, since 2×281360029349522 (a number of 28 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 890202 + ... + 7554102.

It is an arithmetic number, because the mean of its divisors is an integer number (666473498775).

Almost surely, 228136002934952 is an apocalyptic number.

28136002934952 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28136002934952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42654303921600).

28136002934952 is an abundant number, since it is smaller than the sum of its proper divisors (57172604908248).

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

28136002934952 is a wasteful number, since it uses less digits than its factorization.

28136002934952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6665704 (or 6665694 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 54.

The spelling of 28136002934952 in words is "twenty-eight trillion, one hundred thirty-six billion, two million, nine hundred thirty-four thousand, nine hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 11 12 18 22 24 27 33 36 44 54 66 72 88 99 108 132 198 216 264 297 396 594 792 1188 1777 2376 3554 5331 7108 10662 14216 15993 19547 21324 31986 39094 42648 47979 58641 63972 78188 95958 117282 127944 156376 175923 191916 234564 351846 383832 469128 527769 703692 1055538 1407384 2111076 4222152 6663901 13327802 19991703 26655604 39983406 53311208 59975109 73302911 79966812 119950218 146605822 159933624 179925327 219908733 239900436 293211644 359850654 439817466 479800872 586423288 659726199 719701308 879634932 1319452398 1439402616 1759269864 1979178597 2638904796 3958357194 5277809592 7916714388 11841752077 15833428776 23683504154 35525256231 47367008308 71050512462 94734016616 106575768693 130259272847 142101024924 213151537386 260518545694 284202049848 319727306079 390777818541 426303074772 521037091388 639454612158 781555637082 852606149544 1042074182776 1172333455623 1278909224316 1563111274164 2344666911246 2557818448632 3126222548328 3517000366869 4689333822492 7034000733738 9378667644984 14068001467476 28136002934952