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18799116160 = 2751113919211
BaseRepresentation
bin10001100000100000…
…111011111110000000
31210112010212001022111
4101200200323332000
5302000033204120
612345230145104
71233600564556
oct214040737600
953463761274
1018799116160
117a7767a240
123787952194
131a07964096
14ca4a05bd6
1575060875a
hex46083bf80

18799116160 has 128 divisors (see below), whose sum is σ = 49382524800. Its totient is φ = 6786508800.

The previous prime is 18799116143. The next prime is 18799116197. The reversal of 18799116160 is 6161199781.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

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, 968955 + ... + 988165.

It is an arithmetic number, because the mean of its divisors is an integer number (385800975).

Almost surely, 218799116160 is an apocalyptic number.

18799116160 is a gapful number since it is divisible by the number (10) 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 18799116160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24691262400).

18799116160 is an abundant number, since it is smaller than the sum of its proper divisors (30583408640).

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

18799116160 is a wasteful number, since it uses less digits than its factorization.

18799116160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19380 (or 19368 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 49.

The spelling of 18799116160 in words is "eighteen billion, seven hundred ninety-nine million, one hundred sixteen thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 11 16 20 22 32 40 44 55 64 80 88 110 128 139 160 176 220 278 320 352 440 556 640 695 704 880 1112 1390 1408 1529 1760 2224 2780 3058 3520 4448 5560 6116 7040 7645 8896 11120 12232 15290 17792 19211 22240 24464 30580 38422 44480 48928 61160 76844 88960 96055 97856 122320 153688 192110 195712 211321 244640 307376 384220 422642 489280 614752 768440 845284 978560 1056605 1229504 1536880 1690568 2113210 2459008 2670329 3073760 3381136 4226420 5340658 6147520 6762272 8452840 10681316 12295040 13351645 13524544 16905680 21362632 26703290 27049088 29373619 33811360 42725264 53406580 58747238 67622720 85450528 106813160 117494476 135245440 146868095 170901056 213626320 234988952 293736190 341802112 427252640 469977904 587472380 854505280 939955808 1174944760 1709010560 1879911616 2349889520 3759823232 4699779040 9399558080 18799116160