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18668683341 = 32711971671663
BaseRepresentation
bin10001011000101111…
…011000000001001101
31210012001102101010100
4101120233120001031
5301213140331331
612324250401313
71230425122140
oct213057300115
953161371110
1018668683341
117a0aa92120
123750130239
1319b69265b9
14c91572057
15743e41ae6
hex458bd804d

18668683341 has 96 divisors (see below), whose sum is σ = 34190327808. Its totient is φ = 9534827520.

The previous prime is 18668683337. The next prime is 18668683367. The reversal of 18668683341 is 14338686681.

18668683341 is a `hidden beast` number, since 186 + 68 + 68 + 3 + 341 = 666.

It is not a de Polignac number, because 18668683341 - 22 = 18668683337 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18668683141) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 11225076 + ... + 11226738.

It is an arithmetic number, because the mean of its divisors is an integer number (356149248).

Almost surely, 218668683341 is an apocalyptic number.

18668683341 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

18668683341 is a deficient number, since it is larger than the sum of its proper divisors (15521644467).

18668683341 is a wasteful number, since it uses less digits than its factorization.

18668683341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1951 (or 1948 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 54.

The spelling of 18668683341 in words is "eighteen billion, six hundred sixty-eight million, six hundred eighty-three thousand, three hundred forty-one".

Divisors: 1 3 7 9 11 21 33 63 77 97 99 167 231 291 501 679 693 873 1067 1169 1503 1663 1837 2037 3201 3507 4989 5511 6111 7469 9603 10521 11641 12859 14967 16199 16533 18293 22407 34923 38577 48597 54879 67221 104769 113393 115731 128051 145791 161311 164637 178189 277721 340179 384153 483933 534567 833163 1020537 1129177 1152459 1247323 1451799 1603701 1774421 1944047 2499489 3054931 3387531 3741969 5323263 5832141 9164793 10162593 11225907 12420947 15969789 17496423 21384517 26938937 27494379 37262841 64153551 80816811 111788523 188572559 192460653 242450433 296328307 565717677 888984921 1697153031 2074298149 2666954763 6222894447 18668683341