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68112306335 = 5172333439147
BaseRepresentation
bin111111011011110011…
…110101000010011111
320111210212022122222102
4333123303311002133
52103443222300320
651142415035315
74630613023403
oct773363650237
9214725278872
1068112306335
1126982691967
121124a80bb3b
136566332358
143422033103
151b89a34175
hexfdbcf509f

68112306335 has 16 divisors (see below), whose sum is σ = 86914148256. Its totient is φ = 51064439808.

The previous prime is 68112306319. The next prime is 68112306337. The reversal of 68112306335 is 53360321186.

It is a cyclic number.

It is not a de Polignac number, because 68112306335 - 24 = 68112306319 is a prime.

It is a super-2 number, since 2×681123063352 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68112306337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1699769 + ... + 1739378.

It is an arithmetic number, because the mean of its divisors is an integer number (5432134266).

Almost surely, 268112306335 is an apocalyptic number.

68112306335 is a deficient number, since it is larger than the sum of its proper divisors (18801841921).

68112306335 is a wasteful number, since it uses less digits than its factorization.

68112306335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3439402.

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 68112306335 in words is "sixty-eight billion, one hundred twelve million, three hundred six thousand, three hundred thirty-five".

Divisors: 1 5 17 85 233 1165 3961 19805 3439147 17195735 58465499 292327495 801321251 4006606255 13622461267 68112306335