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90767038374 = 2331988466899
BaseRepresentation
bin101010010001000100…
…0110001011110100110
322200021201012021222000
41110202020301132212
52441342330211444
6105410420350130
76362202045015
oct1244210613646
9280251167860
1090767038374
1135548699401
1215711845346
138736a0413c
144570b26a7c
152563892469
hex15222317a6

90767038374 has 32 divisors (see below), whose sum is σ = 212320560000. Its totient is φ = 28663274952.

The previous prime is 90767038343. The next prime is 90767038381. The reversal of 90767038374 is 47383076709.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 90767038374.

It is a congruent number.

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, 44232424 + ... + 44234475.

It is an arithmetic number, because the mean of its divisors is an integer number (6635017500).

Almost surely, 290767038374 is an apocalyptic number.

90767038374 is an abundant number, since it is smaller than the sum of its proper divisors (121553521626).

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

90767038374 is a wasteful number, since it uses less digits than its factorization.

90767038374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88466929 (or 88466923 counting only the distinct ones).

The product of its (nonzero) digits is 5334336, while the sum is 54.

The spelling of 90767038374 in words is "ninety billion, seven hundred sixty-seven million, thirty-eight thousand, three hundred seventy-four".

Divisors: 1 2 3 6 9 18 19 27 38 54 57 114 171 342 513 1026 88466899 176933798 265400697 530801394 796202091 1592404182 1680871081 2388606273 3361742162 4777212546 5042613243 10085226486 15127839729 30255679458 45383519187 90767038374