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90768516800968 = 23172367433105493
BaseRepresentation
bin10100101000110110110001…
…001100110110000111001000
3102220101101102000000210111101
4110220312301030312013020
543344122410300112333
6521014251515511144
725055544314506456
oct2450666114660710
9386341360023441
1090768516800968
1126a157914494a6
12a21b6687584b4
133b85585513046
14185b310a319d6
15a7616dc1867d
hex528db13361c8

90768516800968 has 64 divisors (see below), whose sum is σ = 190843604876160. Its totient is φ = 40247627160576.

The previous prime is 90768516800959. The next prime is 90768516800977. The reversal of 90768516800968 is 86900861586709.

It is an interprime number because it is at equal distance from previous prime (90768516800959) and next prime (90768516800977).

It is a super-2 number, since 2×907685168009682 (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 90768516800968.

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, 216343171 + ... + 216762322.

It is an arithmetic number, because the mean of its divisors is an integer number (2981931326190).

Almost surely, 290768516800968 is an apocalyptic number.

It is an amenable number.

90768516800968 is an abundant number, since it is smaller than the sum of its proper divisors (100075088075192).

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

90768516800968 is a wasteful number, since it uses less digits than its factorization.

90768516800968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433105606 (or 433105602 counting only the distinct ones).

The product of its (nonzero) digits is 313528320, while the sum is 73.

The spelling of 90768516800968 in words is "ninety trillion, seven hundred sixty-eight billion, five hundred sixteen million, eight hundred thousand, nine hundred sixty-eight".

Divisors: 1 2 4 8 17 23 34 46 67 68 92 134 136 184 268 391 536 782 1139 1541 1564 2278 3082 3128 4556 6164 9112 12328 26197 52394 104788 209576 433105493 866210986 1732421972 3464843944 7362793381 9961426339 14725586762 19922852678 29018068031 29451173524 39845705356 58036136062 58902347048 79691410712 116072272124 169344247763 232144544248 338688495526 493307156527 667415564713 677376991052 986614313054 1334831129426 1354753982104 1973228626108 2669662258852 3946457252216 5339324517704 11346064600121 22692129200242 45384258400484 90768516800968