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85108081188 = 223132323720201
BaseRepresentation
bin100111101000011010…
…1100100001000100100
322010200022212111002010
41033100311210020210
52343300132044223
6103033105314220
76102025516404
oct1172065441044
9263608774063
1085108081188
1133104325089
12145b2635970
1380444a6570
144195332804
152331b74393
hex13d0d64224

85108081188 has 48 divisors (see below), whose sum is σ = 223159660416. Its totient is φ = 25048531200.

The previous prime is 85108081181. The next prime is 85108081237. The reversal of 85108081188 is 88118080158.

It is not an unprimeable number, because it can be changed into a prime (85108081181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11856513 + ... + 11863688.

It is an arithmetic number, because the mean of its divisors is an integer number (4649159592).

Almost surely, 285108081188 is an apocalyptic number.

It is an amenable number.

85108081188 is an abundant number, since it is smaller than the sum of its proper divisors (138051579228).

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

85108081188 is a wasteful number, since it uses less digits than its factorization.

85108081188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23720244 (or 23720242 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 48.

The spelling of 85108081188 in words is "eighty-five billion, one hundred eight million, eighty-one thousand, one hundred eighty-eight".

Divisors: 1 2 3 4 6 12 13 23 26 39 46 52 69 78 92 138 156 276 299 598 897 1196 1794 3588 23720201 47440402 71160603 94880804 142321206 284642412 308362613 545564623 616725226 925087839 1091129246 1233450452 1636693869 1850175678 2182258492 3273387738 3700351356 6546775476 7092340099 14184680198 21277020297 28369360396 42554040594 85108081188