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90762387612 = 22313289502861
BaseRepresentation
bin101010010000111011…
…1000010000010011100
322200021101110000022120
41110201313002002130
52441340132400422
6105410132542540
76362114364651
oct1244167020234
9280241400276
1090762387612
11355460021a6
1215710181a50
138735a66300
144570275c28
15256327445c
hex1521dc209c

90762387612 has 72 divisors (see below), whose sum is σ = 231899839920. Its totient is φ = 27613048320.

The previous prime is 90762387607. The next prime is 90762387623. The reversal of 90762387612 is 21678326709.

It is a super-2 number, since 2×907623876122 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70939 + ... + 431922.

It is an arithmetic number, because the mean of its divisors is an integer number (3220831110).

Almost surely, 290762387612 is an apocalyptic number.

It is an amenable number.

90762387612 is an abundant number, since it is smaller than the sum of its proper divisors (141137452308).

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

90762387612 is a wasteful number, since it uses less digits than its factorization.

90762387612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502983 (or 502968 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 51.

The spelling of 90762387612 in words is "ninety billion, seven hundred sixty-two million, three hundred eighty-seven thousand, six hundred twelve".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 89 156 169 178 267 338 356 507 534 676 1014 1068 1157 2028 2314 3471 4628 6942 13884 15041 30082 45123 60164 90246 180492 502861 1005722 1508583 2011444 3017166 6034332 6537193 13074386 19611579 26148772 39223158 44754629 78446316 84983509 89509258 134263887 169967018 179018516 254950527 268527774 339934036 509901054 537055548 581810177 1019802108 1163620354 1745430531 2327240708 3490861062 6981722124 7563532301 15127064602 22690596903 30254129204 45381193806 90762387612