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68739583 = 1119513203
BaseRepresentation
bin1000001100011…
…10000111111111
311210100022222111
410012032013333
5120044131313
610453154451
71463163643
oct406160777
9153308874
1068739583
1135890080
121b02ba27
1311319c13
1491b4c23
15607c43d
hex418e1ff

68739583 has 8 divisors (see below), whose sum is σ = 75050496. Its totient is φ = 62439000.

The previous prime is 68739581. The next prime is 68739607. The reversal of 68739583 is 38593786.

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 68739583 - 21 = 68739581 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 (68739581) 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, 19860 + ... + 23062.

It is an arithmetic number, because the mean of its divisors is an integer number (9381312).

Almost surely, 268739583 is an apocalyptic number.

68739583 is a deficient number, since it is larger than the sum of its proper divisors (6310913).

68739583 is a wasteful number, since it uses less digits than its factorization.

68739583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5165.

The product of its digits is 1088640, while the sum is 49.

The square root of 68739583 is about 8290.9337833564. The cubic root of 68739583 is about 409.6399436621.

The spelling of 68739583 in words is "sixty-eight million, seven hundred thirty-nine thousand, five hundred eighty-three".

Divisors: 1 11 1951 3203 21461 35233 6249053 68739583