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68698959 = 377334463
BaseRepresentation
bin1000001100001…
…00001101001111
311210021021020220
410012010031033
5120041331314
610452242423
71462634340
oct406041517
9153237226
1068698959
11358625aa
121b010413
1311304594
1491a40c7
1560703a9
hex418434f

68698959 has 16 divisors (see below), whose sum is σ = 104850432. Its totient is φ = 39194208.

The previous prime is 68698939. The next prime is 68698963. The reversal of 68698959 is 95989686.

It is not a de Polignac number, because 68698959 - 28 = 68698703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68698909) 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 15 ways as a sum of consecutive naturals, for example, 13162 + ... + 17624.

It is an arithmetic number, because the mean of its divisors is an integer number (6553152).

Almost surely, 268698959 is an apocalyptic number.

68698959 is a deficient number, since it is larger than the sum of its proper divisors (36151473).

68698959 is a wasteful number, since it uses less digits than its factorization.

68698959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5206.

The product of its digits is 8398080, while the sum is 60.

The square root of 68698959 is about 8288.4835163014. The cubic root of 68698959 is about 409.5592308634.

The spelling of 68698959 in words is "sixty-eight million, six hundred ninety-eight thousand, nine hundred fifty-nine".

Divisors: 1 3 7 21 733 2199 4463 5131 13389 15393 31241 93723 3271379 9814137 22899653 68698959