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68702863 = 234369467
BaseRepresentation
bin1000001100001…
…01001010001111
311210021110121111
410012011022033
5120041442423
610452312451
71462651615
oct406051217
9153243544
1068702863
1135865529
121b012727
13113062a8
1491a56b5
15607160d
hex418528f

68702863 has 8 divisors (see below), whose sum is σ = 73358208. Its totient is φ = 64186584.

The previous prime is 68702833. The next prime is 68702873. The reversal of 68702863 is 36820786.

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 68702863 - 225 = 35148431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68702833) 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, 33745 + ... + 35722.

It is an arithmetic number, because the mean of its divisors is an integer number (9169776).

Almost surely, 268702863 is an apocalyptic number.

68702863 is a deficient number, since it is larger than the sum of its proper divisors (4655345).

68702863 is a wasteful number, since it uses less digits than its factorization.

68702863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69533.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 68702863 is about 8288.7190204518. The cubic root of 68702863 is about 409.5669888118.

The spelling of 68702863 in words is "sixty-eight million, seven hundred two thousand, eight hundred sixty-three".

Divisors: 1 23 43 989 69467 1597741 2987081 68702863