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68753679 = 341558973
BaseRepresentation
bin1000001100100…
…01100100001111
311210101001022120
410012101210033
5120100104204
610453344023
71463253021
oct406214417
9153331276
1068753679
113589a725
121b038013
1311323467
1491ba011
1560816d9
hex419190f

68753679 has 8 divisors (see below), whose sum is σ = 93907632. Its totient is φ = 44717760.

The previous prime is 68753677. The next prime is 68753681. The reversal of 68753679 is 97635786.

It is an interprime number because it is at equal distance from previous prime (68753677) and next prime (68753681).

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

It is not a de Polignac number, because 68753679 - 21 = 68753677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68753677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279364 + ... + 279609.

It is an arithmetic number, because the mean of its divisors is an integer number (11738454).

Almost surely, 268753679 is an apocalyptic number.

68753679 is a deficient number, since it is larger than the sum of its proper divisors (25153953).

68753679 is a wasteful number, since it uses less digits than its factorization.

68753679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559017.

The product of its digits is 1905120, while the sum is 51.

The square root of 68753679 is about 8291.7838249679. The cubic root of 68753679 is about 409.6679425226.

The spelling of 68753679 in words is "sixty-eight million, seven hundred fifty-three thousand, six hundred seventy-nine".

Divisors: 1 3 41 123 558973 1676919 22917893 68753679