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78896830080 = 2735231786613
BaseRepresentation
bin100100101111010011…
…1100001011010000000
321112122110022020100210
41021132213201122000
52243040042030310
6100124504514120
75462064663525
oct1113647413200
9245573266323
1078896830080
1130507227202
121335a47b940
137594714353
143b6645314c
1520bb70d820
hex125e9e1680

78896830080 has 128 divisors (see below), whose sum is σ = 262417864320. Its totient is φ = 20124397568.

The previous prime is 78896830049. The next prime is 78896830091. The reversal of 78896830080 is 8003869887.

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

It is a self number, because there is not a number n which added to its sum of digits gives 78896830080.

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, 849147 + ... + 937466.

It is an arithmetic number, because the mean of its divisors is an integer number (2050139565).

Almost surely, 278896830080 is an apocalyptic number.

It is an amenable number.

78896830080 is an abundant number, since it is smaller than the sum of its proper divisors (183521034240).

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

78896830080 is a wasteful number, since it uses less digits than its factorization.

78896830080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1786658 (or 1786646 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 57.

The spelling of 78896830080 in words is "seventy-eight billion, eight hundred ninety-six million, eight hundred thirty thousand, eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 23 24 30 32 40 46 48 60 64 69 80 92 96 115 120 128 138 160 184 192 230 240 276 320 345 368 384 460 480 552 640 690 736 920 960 1104 1380 1472 1840 1920 2208 2760 2944 3680 4416 5520 7360 8832 11040 14720 22080 44160 1786613 3573226 5359839 7146452 8933065 10719678 14292904 17866130 21439356 26799195 28585808 35732260 41092099 42878712 53598390 57171616 71464520 82184198 85757424 107196780 114343232 123276297 142929040 164368396 171514848 205460495 214393560 228686464 246552594 285858080 328736792 343029696 410920990 428787120 493105188 571716160 616381485 657473584 686059392 821841980 857574240 986210376 1143432320 1232762970 1314947168 1643683960 1715148480 1972420752 2465525940 2629894336 3287367920 3430296960 3944841504 4931051880 5259788672 6574735840 7889683008 9862103760 13149471680 15779366016 19724207520 26298943360 39448415040 78896830080