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115908641888 = 2513231691381
BaseRepresentation
bin110101111110010110…
…0011000010001100000
3102002011212120002021112
41223330230120101200
53344340103020023
6125125300242452
711242216125434
oct1537454302140
9362155502245
10115908641888
114517a452226
121a5696a0428
13ac12689800
145877c109c4
153035bd6478
hex1afcb18460

115908641888 has 72 divisors (see below), whose sum is σ = 255070178496. Its totient is φ = 51770534400.

The previous prime is 115908641861. The next prime is 115908641923. The reversal of 115908641888 is 888146809511.

115908641888 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 178043 + ... + 513338.

It is an arithmetic number, because the mean of its divisors is an integer number (3542641368).

Almost surely, 2115908641888 is an apocalyptic number.

It is an amenable number.

115908641888 is an abundant number, since it is smaller than the sum of its proper divisors (139161536608).

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

115908641888 is a wasteful number, since it uses less digits than its factorization.

115908641888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691448 (or 691427 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 59.

The spelling of 115908641888 in words is "one hundred fifteen billion, nine hundred eight million, six hundred forty-one thousand, eight hundred eighty-eight".

Divisors: 1 2 4 8 13 16 26 31 32 52 62 104 124 169 208 248 338 403 416 496 676 806 992 1352 1612 2704 3224 5239 5408 6448 10478 12896 20956 41912 83824 167648 691381 1382762 2765524 5531048 8987953 11062096 17975906 21432811 22124192 35951812 42865622 71903624 85731244 116843389 143807248 171462488 233686778 278626543 287614496 342924976 467373556 557253086 685849952 934747112 1114506172 1869494224 2229012344 3622145059 3738988448 4458024688 7244290118 8916049376 14488580236 28977160472 57954320944 115908641888