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51160480085 = 51121317675711
BaseRepresentation
bin101111101001011001…
…101111100101010101
311220001110110200000202
4233221121233211111
51314234040330320
635300334350245
73460542622421
oct575131574525
9156043420022
1051160480085
111a773836a00
129ab965b385
134a94308030
1426948d3b81
1514e66c5b75
hexbe966f955

51160480085 has 96 divisors (see below), whose sum is σ = 78108903936. Its totient is φ = 31837132800.

The previous prime is 51160480037. The next prime is 51160480087. The reversal of 51160480085 is 58008406115.

It is not a de Polignac number, because 51160480085 - 234 = 33980610901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51160480087) 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, 8955380 + ... + 8961090.

It is an arithmetic number, because the mean of its divisors is an integer number (813634416).

Almost surely, 251160480085 is an apocalyptic number.

51160480085 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

51160480085 is a deficient number, since it is larger than the sum of its proper divisors (26948423851).

51160480085 is a wasteful number, since it uses less digits than its factorization.

51160480085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5835 (or 5824 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 38.

The spelling of 51160480085 in words is "fifty-one billion, one hundred sixty million, four hundred eighty thousand, eighty-five".

Divisors: 1 5 11 13 17 55 65 67 85 121 143 187 221 335 605 715 737 871 935 1105 1139 1573 2057 2431 3685 4355 5695 5711 7865 8107 9581 10285 12155 12529 14807 26741 28555 40535 47905 62645 62821 74035 74243 97087 105391 133705 137819 162877 314105 371215 382637 485435 526955 689095 691031 814385 816673 1067957 1262131 1791647 1913185 3455155 4083365 4209007 4974281 5339785 6310655 6504829 8958235 8983403 11747527 13883441 21045035 24871405 32524145 44917015 46299077 54717091 58737635 69417205 71553119 84562777 152717851 231495385 273585455 357765595 422813885 601888001 763589255 787084309 930190547 3009440005 3935421545 4650952735 10232096017 51160480085