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68630799 = 3206911057
BaseRepresentation
bin1000001011100…
…11100100001111
311210010210202110
410011303210033
5120032141144
610450555103
71462231536
oct405634417
9153123673
1068630799
1135816376
121ab98a93
13112ac553
14918731d
15605a0b9
hex417390f

68630799 has 8 divisors (see below), whose sum is σ = 91560240. Its totient is φ = 45727616.

The previous prime is 68630797. The next prime is 68630839. The reversal of 68630799 is 99703686.

It is a happy number.

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 68630799 - 21 = 68630797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68630797) 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, 679 + ... + 11735.

It is an arithmetic number, because the mean of its divisors is an integer number (11445030).

Almost surely, 268630799 is an apocalyptic number.

68630799 is a deficient number, since it is larger than the sum of its proper divisors (22929441).

68630799 is a wasteful number, since it uses less digits than its factorization.

68630799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13129.

The product of its (nonzero) digits is 489888, while the sum is 48.

The square root of 68630799 is about 8284.3707666907. The cubic root of 68630799 is about 409.4237373282.

The spelling of 68630799 in words is "sixty-eight million, six hundred thirty thousand, seven hundred ninety-nine".

Divisors: 1 3 2069 6207 11057 33171 22876933 68630799