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68231330113 = 1673179471361
BaseRepresentation
bin111111100010111001…
…110111100101000001
320112010011021200220111
4333202321313211001
52104214210030423
651202310111321
74633556510452
oct774271674501
9215104250814
1068231330113
1126a33897221
121128264b541
136584ba6b1b
143433b77129
151b951e560d
hexfe2e77941

68231330113 has 16 divisors (see below), whose sum is σ = 68979786624. Its totient is φ = 67487791360.

The previous prime is 68231330107. The next prime is 68231330129. The reversal of 68231330113 is 31103313286.

It is a cyclic number.

It is not a de Polignac number, because 68231330113 - 25 = 68231330081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68231330183) 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, 50132553 + ... + 50133913.

It is an arithmetic number, because the mean of its divisors is an integer number (4311236664).

Almost surely, 268231330113 is an apocalyptic number.

It is an amenable number.

68231330113 is a deficient number, since it is larger than the sum of its proper divisors (748456511).

68231330113 is a wasteful number, since it uses less digits than its factorization.

68231330113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2792.

The product of its (nonzero) digits is 7776, while the sum is 31.

Adding to 68231330113 its reverse (31103313286), we get a palindrome (99334643399).

The spelling of 68231330113 in words is "sixty-eight billion, two hundred thirty-one million, three hundred thirty thousand, one hundred thirteen".

Divisors: 1 167 317 947 1361 52939 158149 227287 300199 431437 1288867 50133233 72049979 215240789 408570839 68231330113