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68272774115 = 5713827181439
BaseRepresentation
bin111111100101010111…
…111101101111100011
320112020001021021101112
4333211113331233203
52104310312232430
651210350253535
74634602001450
oct774527755743
9215201237345
1068272774115
1126a55223767
12112944b72ab
1365906579c0
143439484827
151b98b80195
hexfe55fdbe3

68272774115 has 32 divisors (see below), whose sum is σ = 100956119040. Its totient is φ = 43161922944.

The previous prime is 68272774099. The next prime is 68272774147. The reversal of 68272774115 is 51147727286.

It is not a de Polignac number, because 68272774115 - 24 = 68272774099 is a prime.

It is a super-2 number, since 2×682727741152 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 285566 + ... + 467004.

It is an arithmetic number, because the mean of its divisors is an integer number (3154878720).

Almost surely, 268272774115 is an apocalyptic number.

68272774115 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

68272774115 is a deficient number, since it is larger than the sum of its proper divisors (32683344925).

68272774115 is a wasteful number, since it uses less digits than its factorization.

68272774115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182291.

The product of its digits is 1317120, while the sum is 50.

The spelling of 68272774115 in words is "sixty-eight billion, two hundred seventy-two million, seven hundred seventy-four thousand, one hundred fifteen".

Divisors: 1 5 7 13 35 65 91 455 827 4135 5789 10751 28945 53755 75257 181439 376285 907195 1270073 2358707 6350365 11793535 16510949 82554745 150050053 750250265 1050350371 1950650689 5251751855 9753253445 13654554823 68272774115