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68680882 = 273470417
BaseRepresentation
bin1000001011111…
…11110010110010
311210020100110101
410011333302302
5120040242012
610452023014
71462530544
oct405776262
9153210411
1068680882
113584aa66
121b001a6a
13112c929a
14919b694
156069d57
hex417fcb2

68680882 has 8 divisors (see below), whose sum is σ = 104432796. Its totient is φ = 33869952.

The previous prime is 68680861. The next prime is 68680889. The reversal of 68680882 is 28808686.

It can be written as a sum of positive squares in 2 ways, for example, as 68409441 + 271441 = 8271^2 + 521^2 .

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

It is not an unprimeable number, because it can be changed into a prime (68680889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235063 + ... + 235354.

Almost surely, 268680882 is an apocalyptic number.

68680882 is a deficient number, since it is larger than the sum of its proper divisors (35751914).

68680882 is a wasteful number, since it uses less digits than its factorization.

68680882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470492.

The product of its (nonzero) digits is 294912, while the sum is 46.

The square root of 68680882 is about 8287.3929555681. The cubic root of 68680882 is about 409.5233047892.

The spelling of 68680882 in words is "sixty-eight million, six hundred eighty thousand, eight hundred eighty-two".

Divisors: 1 2 73 146 470417 940834 34340441 68680882