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68825767 = 71969377
BaseRepresentation
bin1000001101000…
…11001010100111
311210111201012111
410012203022213
5120104411032
610455101451
71464003133
oct406431247
9153451174
1068825767
11359398aa
121b071887
131134a20a
1491d83c3
156097c47
hex41a32a7

68825767 has 4 divisors (see below), whose sum is σ = 69795216. Its totient is φ = 67856320.

The previous prime is 68825759. The next prime is 68825789. The reversal of 68825767 is 76752886.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68825767 - 23 = 68825759 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68825767.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68825737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 484618 + ... + 484759.

It is an arithmetic number, because the mean of its divisors is an integer number (17448804).

Almost surely, 268825767 is an apocalyptic number.

68825767 is a deficient number, since it is larger than the sum of its proper divisors (969449).

68825767 is an equidigital number, since it uses as much as digits as its factorization.

68825767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969448.

The product of its digits is 1128960, while the sum is 49.

The square root of 68825767 is about 8296.1296397778. The cubic root of 68825767 is about 409.8110709953.

The spelling of 68825767 in words is "sixty-eight million, eight hundred twenty-five thousand, seven hundred sixty-seven".

Divisors: 1 71 969377 68825767