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68495745 = 354566383
BaseRepresentation
bin1000001010100…
…10100110000001
311202212221111110
410011102212001
5120013330440
610444033533
71461130023
oct405224601
9152787443
1068495745
113573395a
121ab328a9
1311262c36
149150013
156030080
hex4152981

68495745 has 8 divisors (see below), whose sum is σ = 109593216. Its totient is φ = 36531056.

The previous prime is 68495743. The next prime is 68495761. The reversal of 68495745 is 54759486.

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 68495745 - 21 = 68495743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68495694 and 68495703.

It is not an unprimeable number, because it can be changed into a prime (68495743) 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, 2283177 + ... + 2283206.

It is an arithmetic number, because the mean of its divisors is an integer number (13699152).

Almost surely, 268495745 is an apocalyptic number.

It is an amenable number.

68495745 is a deficient number, since it is larger than the sum of its proper divisors (41097471).

68495745 is a wasteful number, since it uses less digits than its factorization.

68495745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4566391.

The product of its digits is 1209600, while the sum is 48.

The square root of 68495745 is about 8276.2156206807. The cubic root of 68495745 is about 409.1550016977.

The spelling of 68495745 in words is "sixty-eight million, four hundred ninety-five thousand, seven hundred forty-five".

Divisors: 1 3 5 15 4566383 13699149 22831915 68495745