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28055837088 = 2532472072683
BaseRepresentation
bin11010001000010000…
…100001100110100000
32200102021000012020100
4122020100201212200
5424424243241323
620515541542400
72012151452256
oct321020414640
980367005210
1028055837088
1110997874724
12552ba14a00
13285166ac46
1415021665d6
15ae30e5943
hex6884219a0

28055837088 has 72 divisors (see below), whose sum is σ = 81481353408. Its totient is φ = 9152963712.

The previous prime is 28055837083. The next prime is 28055837099. The reversal of 28055837088 is 88073855082.

It is a happy number.

28055837088 is a `hidden beast` number, since 2 + 8 + 0 + 558 + 3 + 7 + 0 + 88 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (28055837083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1022806 + ... + 1049877.

It is an arithmetic number, because the mean of its divisors is an integer number (1131685464).

Almost surely, 228055837088 is an apocalyptic number.

It is an amenable number.

28055837088 is an abundant number, since it is smaller than the sum of its proper divisors (53425516320).

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

28055837088 is a wasteful number, since it uses less digits than its factorization.

28055837088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2072746 (or 2072735 counting only the distinct ones).

The product of its (nonzero) digits is 4300800, while the sum is 54.

The spelling of 28055837088 in words is "twenty-eight billion, fifty-five million, eight hundred thirty-seven thousand, eighty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 47 48 72 94 96 141 144 188 282 288 376 423 564 752 846 1128 1504 1692 2256 3384 4512 6768 13536 2072683 4145366 6218049 8290732 12436098 16581464 18654147 24872196 33162928 37308294 49744392 66325856 74616588 97416101 99488784 149233176 194832202 198977568 292248303 298466352 389664404 584496606 596932704 779328808 876744909 1168993212 1558657616 1753489818 2337986424 3117315232 3506979636 4675972848 7013959272 9351945696 14027918544 28055837088