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28404380001024 = 28334395568139
BaseRepresentation
bin1100111010101011010001…
…11110101110001100000000
310201120102200002011101101000
412131111220332232030000
512210334132240013044
6140224443025012000
75661102005234346
oct635255076561400
9121512602141330
1028404380001024
119061259012225
123228b61484000
1312b06a1a963c1
14702aca68d996
15343ce2eccd69
hex19d568fae300

28404380001024 has 144 divisors (see below), whose sum is σ = 85950162390400. Its totient is φ = 9247937577984.

The previous prime is 28404380000993. The next prime is 28404380001071. The reversal of 28404380001024 is 42010008340482.

28404380001024 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 28404380001024.

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, 47486854 + ... + 48081285.

Almost surely, 228404380001024 is an apocalyptic number.

28404380001024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28404380001024 is an abundant number, since it is smaller than the sum of its proper divisors (57545782389376).

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

28404380001024 is an equidigital number, since it uses as much as digits as its factorization.

28404380001024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95568207 (or 95568187 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 36.

The spelling of 28404380001024 in words is "twenty-eight trillion, four hundred four billion, three hundred eighty million, one thousand, twenty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 43 48 54 64 72 86 96 108 128 129 144 172 192 216 256 258 288 344 384 387 432 516 576 688 768 774 864 1032 1152 1161 1376 1548 1728 2064 2304 2322 2752 3096 3456 4128 4644 5504 6192 6912 8256 9288 11008 12384 16512 18576 24768 33024 37152 49536 74304 99072 148608 297216 95568139 191136278 286704417 382272556 573408834 764545112 860113251 1146817668 1529090224 1720226502 2293635336 2580339753 3058180448 3440453004 4109429977 4587270672 5160679506 6116360896 6880906008 8218859954 9174541344 10321359012 12232721792 12328289931 13761812016 16437719908 18349082688 20642718024 24465443584 24656579862 27523624032 32875439816 36698165376 36984869793 41285436048 49313159724 55047248064 65750879632 73396330752 73969739586 82570872096 98626319448 110094496128 110954609379 131501759264 147939479172 165141744192 197252638896 220188992256 221909218758 263003518528 295878958344 330283488384 394505277792 443818437516 526007037056 591757916688 660566976768 789010555584 887636875032 1052014074112 1183515833376 1578021111168 1775273750064 2367031666752 3156042222336 3550547500128 4734063333504 7101095000256 9468126667008 14202190000512 28404380001024