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68059131539 = 710499268573
BaseRepresentation
bin111111011000101000…
…111110111010010011
320111200011021002212112
4333120220332322103
52103341114202124
651133235215535
74626366034010
oct773050767223
9214604232775
1068059131539
1126955672953
1211234a475ab
136558304b89
143418d50707
151b8502d90e
hexfd8a3ee93

68059131539 has 8 divisors (see below), whose sum is σ = 77856021600. Its totient is φ = 58280780736.

The previous prime is 68059131509. The next prime is 68059131557. The reversal of 68059131539 is 93513195086.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68059131539 - 212 = 68059127443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68059131509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4626944 + ... + 4641629.

It is an arithmetic number, because the mean of its divisors is an integer number (9732002700).

Almost surely, 268059131539 is an apocalyptic number.

68059131539 is a deficient number, since it is larger than the sum of its proper divisors (9796890061).

68059131539 is a wasteful number, since it uses less digits than its factorization.

68059131539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9269629.

The product of its (nonzero) digits is 874800, while the sum is 50.

The spelling of 68059131539 in words is "sixty-eight billion, fifty-nine million, one hundred thirty-one thousand, five hundred thirty-nine".

Divisors: 1 7 1049 7343 9268573 64880011 9722733077 68059131539