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68361759 = 332531917
BaseRepresentation
bin1000001001100…
…01111000011111
311202122010201000
410010301320133
5120000034014
610441121343
71460031264
oct404617037
9152563630
1068361759
1135652224
121aa89253
1311216c5b
14911726b
156005509
hex4131e1f

68361759 has 8 divisors (see below), whose sum is σ = 101276720. Its totient is φ = 45574488.

The previous prime is 68361757. The next prime is 68361803. The reversal of 68361759 is 95716386.

It is a happy number.

It is not a de Polignac number, because 68361759 - 21 = 68361757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68361751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1265932 + ... + 1265985.

It is an arithmetic number, because the mean of its divisors is an integer number (12659590).

Almost surely, 268361759 is an apocalyptic number.

68361759 is a deficient number, since it is larger than the sum of its proper divisors (32914961).

68361759 is a wasteful number, since it uses less digits than its factorization.

68361759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2531926 (or 2531920 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 68361759 is about 8268.1170165885. The cubic root of 68361759 is about 408.8880419204. Note that the first 3 decimals are identical.

The spelling of 68361759 in words is "sixty-eight million, three hundred sixty-one thousand, seven hundred fifty-nine".

Divisors: 1 3 9 27 2531917 7595751 22787253 68361759