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68768086 = 2233147571
BaseRepresentation
bin1000001100101…
…01000101010110
311210101210002011
410012111011112
5120101034321
610453534434
71463343022
oct406250526
9153353064
1068768086
11358aa532
121b04441a
1311329b9a
1491c1382
156085ae1
hex4195156

68768086 has 8 divisors (see below), whose sum is σ = 103595544. Its totient is φ = 34236240.

The previous prime is 68768081. The next prime is 68768101. The reversal of 68768086 is 68086786.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68768081) 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 3 ways as a sum of consecutive naturals, for example, 73320 + ... + 74251.

It is an arithmetic number, because the mean of its divisors is an integer number (12949443).

Almost surely, 268768086 is an apocalyptic number.

68768086 is a deficient number, since it is larger than the sum of its proper divisors (34827458).

68768086 is a wasteful number, since it uses less digits than its factorization.

68768086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147806.

The product of its (nonzero) digits is 774144, while the sum is 49.

The square root of 68768086 is about 8292.6525310060. The cubic root of 68768086 is about 409.6965551677.

The spelling of 68768086 in words is "sixty-eight million, seven hundred sixty-eight thousand, eighty-six".

Divisors: 1 2 233 466 147571 295142 34384043 68768086