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89915258292 = 223293725572731
BaseRepresentation
bin101001110111101011…
…1011111010110110100
322121002100102101100120
41103233113133112310
52433121301231132
6105150112011540
76332120041116
oct1235727372664
9277070371316
1089915258292
1135150901422
1215514530bb0
13862c3c1862
1444cd95d3b6
152513bdd02c
hex14ef5df5b4

89915258292 has 96 divisors (see below), whose sum is σ = 223071515520. Its totient is φ = 28134812160.

The previous prime is 89915258281. The next prime is 89915258387. The reversal of 89915258292 is 29285251998.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 32922567 + ... + 32925297.

It is an arithmetic number, because the mean of its divisors is an integer number (2323661620).

Almost surely, 289915258292 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89915258292, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111535757760).

89915258292 is an abundant number, since it is smaller than the sum of its proper divisors (133156257228).

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

89915258292 is a wasteful number, since it uses less digits than its factorization.

89915258292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5361 (or 5359 counting only the distinct ones).

The product of its digits is 9331200, while the sum is 60.

The spelling of 89915258292 in words is "eighty-nine billion, nine hundred fifteen million, two hundred fifty-eight thousand, two hundred ninety-two".

Divisors: 1 2 3 4 6 12 29 37 58 74 87 111 116 148 174 222 348 444 1073 2146 2557 2731 3219 4292 5114 5462 6438 7671 8193 10228 10924 12876 15342 16386 30684 32772 74153 79199 94609 101047 148306 158398 189218 202094 222459 237597 283827 296612 303141 316796 378436 404188 444918 475194 567654 606282 889836 950388 1135308 1212564 2743661 2930363 5487322 5860726 6983167 8230983 8791089 10974644 11721452 13966334 16461966 17582178 20949501 27932668 32923932 35164356 41899002 83798004 202511843 258377179 405023686 516754358 607535529 775131537 810047372 1033508716 1215071058 1550263074 2430142116 3100526148 7492938191 14985876382 22478814573 29971752764 44957629146 89915258292