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68536698 = 2318896047
BaseRepresentation
bin1000001010111…
…00100101111010
311202222000200020
410011130211322
5120021133243
610444551310
71461360306
oct405344572
9152860606
1068536698
11357616aa
121ab52536
1311278779
149160d06
15603c283
hex415c97a

68536698 has 16 divisors (see below), whose sum is σ = 137168640. Its totient is φ = 22829696.

The previous prime is 68536697. The next prime is 68536751. The reversal of 68536698 is 89663586.

It is a self number, because there is not a number n which added to its sum of digits gives 68536698.

It is not an unprimeable number, because it can be changed into a prime (68536697) 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, 8311 + ... + 14357.

It is an arithmetic number, because the mean of its divisors is an integer number (8573040).

Almost surely, 268536698 is an apocalyptic number.

68536698 is an abundant number, since it is smaller than the sum of its proper divisors (68631942).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68536698 is a wasteful number, since it uses less digits than its factorization.

68536698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7941.

The product of its digits is 1866240, while the sum is 51.

The square root of 68536698 is about 8278.6893890277. The cubic root of 68536698 is about 409.2365288370.

The spelling of 68536698 in words is "sixty-eight million, five hundred thirty-six thousand, six hundred ninety-eight".

Divisors: 1 2 3 6 1889 3778 5667 6047 11334 12094 18141 36282 11422783 22845566 34268349 68536698