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68246879 = 1912728283
BaseRepresentation
bin1000001000101…
…01110101011111
311202102022010012
410010111311133
5114432400004
610434433435
71456042331
oct404256537
9152368105
1068246879
1135583988
121aa3287b
13111a688c
1490c7451
155ed146e
hex4115d5f

68246879 has 8 divisors (see below), whose sum is σ = 72407040. Its totient is φ = 64143576.

The previous prime is 68246821. The next prime is 68246887. The reversal of 68246879 is 97864286.

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 68246879 - 28 = 68246623 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 (68216879) 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, 11729 + ... + 16554.

It is an arithmetic number, because the mean of its divisors is an integer number (9050880).

Almost surely, 268246879 is an apocalyptic number.

68246879 is a deficient number, since it is larger than the sum of its proper divisors (4160161).

68246879 is a wasteful number, since it uses less digits than its factorization.

68246879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28429.

The product of its digits is 1161216, while the sum is 50.

The square root of 68246879 is about 8261.1669272567. The cubic root of 68246879 is about 408.6588719095.

The spelling of 68246879 in words is "sixty-eight million, two hundred forty-six thousand, eight hundred seventy-nine".

Divisors: 1 19 127 2413 28283 537377 3591941 68246879