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85080663780 = 22357613320869
BaseRepresentation
bin100111100111100110…
…0111110011011100100
322010121102021112110120
41033033030332123210
52343221122220110
6103030245521540
76101243465310
oct1171714763344
9263542245416
1085080663780
113309a8a8a72
12145a54132b0
13803b8c6c48
144191836b40
15232e55a870
hex13cf33e6e4

85080663780 has 96 divisors (see below), whose sum is σ = 276721455360. Its totient is φ = 19128199680.

The previous prime is 85080663757. The next prime is 85080663859. The reversal of 85080663780 is 8736608058.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1634815 + ... + 1686054.

It is an arithmetic number, because the mean of its divisors is an integer number (2882515160).

Almost surely, 285080663780 is an apocalyptic number.

It is an amenable number.

85080663780 is an abundant number, since it is smaller than the sum of its proper divisors (191640791580).

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

85080663780 is a wasteful number, since it uses less digits than its factorization.

85080663780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3320949 (or 3320947 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 51.

The spelling of 85080663780 in words is "eighty-five billion, eighty million, six hundred sixty-three thousand, seven hundred eighty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 61 70 84 105 122 140 183 210 244 305 366 420 427 610 732 854 915 1220 1281 1708 1830 2135 2562 3660 4270 5124 6405 8540 12810 25620 3320869 6641738 9962607 13283476 16604345 19925214 23246083 33208690 39850428 46492166 49813035 66417380 69738249 92984332 99626070 116230415 139476498 199252140 202573009 232460830 278952996 348691245 405146018 464921660 607719027 697382490 810292036 1012865045 1215438054 1394764980 1418011063 2025730090 2430876108 2836022126 3038595135 4051460180 4254033189 5672044252 6077190270 7090055315 8508066378 12154380540 14180110630 17016132756 21270165945 28360221260 42540331890 85080663780