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78106053612 = 22389304124049
BaseRepresentation
bin100100010111101111…
…0111100101111101100
321110121100022121222110
41020233132330233230
52234430122203422
655514215444020
75433353334006
oct1105736745754
9243540277873
1078106053612
1130140916134
1213179686610
137499940792
143acd409376
1520720a960c
hex122f7bcbec

78106053612 has 48 divisors (see below), whose sum is σ = 184363452000. Its totient is φ = 25733283840.

The previous prime is 78106053517. The next prime is 78106053643. The reversal of 78106053612 is 21635060187.

It is a super-2 number, since 2×781060536122 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3235764 + ... + 3259812.

It is an arithmetic number, because the mean of its divisors is an integer number (3840905250).

Almost surely, 278106053612 is an apocalyptic number.

It is an amenable number.

78106053612 is an abundant number, since it is smaller than the sum of its proper divisors (106257398388).

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

78106053612 is a wasteful number, since it uses less digits than its factorization.

78106053612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27186 (or 27184 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The spelling of 78106053612 in words is "seventy-eight billion, one hundred six million, fifty-three thousand, six hundred twelve".

Divisors: 1 2 3 4 6 12 89 178 267 356 534 1068 3041 6082 9123 12164 18246 24049 36492 48098 72147 96196 144294 270649 288588 541298 811947 1082596 1623894 2140361 3247788 4280722 6421083 8561444 12842166 25684332 73133009 146266018 219399027 292532036 438798054 877596108 6508837801 13017675602 19526513403 26035351204 39053026806 78106053612