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85790268388 = 221173132120219
BaseRepresentation
bin100111111100101111…
…1111001101111100100
322012102212112011222201
41033321133321233210
52401144302042023
6103224515104244
76124651151356
oct1177137715744
9265385464881
1085790268388
1133424408460
1214762ba2084
138122919c26
14421bb910d6
1523719c8bad
hex13f97f9be4

85790268388 has 48 divisors (see below), whose sum is σ = 166158901440. Its totient is φ = 38430374400.

The previous prime is 85790268379. The next prime is 85790268407. The reversal of 85790268388 is 88386209758.

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, 4232943 + ... + 4253161.

It is an arithmetic number, because the mean of its divisors is an integer number (3461643780).

Almost surely, 285790268388 is an apocalyptic number.

It is an amenable number.

85790268388 is a deficient number, since it is larger than the sum of its proper divisors (80368633052).

85790268388 is a wasteful number, since it uses less digits than its factorization.

85790268388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21628 (or 21626 counting only the distinct ones).

The product of its (nonzero) digits is 46448640, while the sum is 64.

The spelling of 85790268388 in words is "eighty-five billion, seven hundred ninety million, two hundred sixty-eight thousand, three hundred eighty-eight".

Divisors: 1 2 4 11 22 44 73 146 292 803 1321 1606 2642 3212 5284 14531 20219 29062 40438 58124 80876 96433 192866 222409 385732 444818 889636 1060763 1475987 2121526 2951974 4243052 5903948 16235857 26709299 32471714 53418598 64943428 106837196 293802289 587604578 1175209156 1949778827 3899557654 7799115308 21447567097 42895134194 85790268388