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7968510067 = 72235104747
BaseRepresentation
bin1110110101111010…
…11101000001110011
3202120100011020211111
413122331131001303
5112304414310232
63354412454151
7401316134530
oct73275350163
922510136744
107968510067
11341a01a611
12166477a357
1399cb68c1b
1455842bd87
1531987a047
hex1daf5d073

7968510067 has 8 divisors (see below), whose sum is σ = 9147708416. Its totient is φ = 6799521672.

The previous prime is 7968510031. The next prime is 7968510071. The reversal of 7968510067 is 7600158697.

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 7968510067 - 227 = 7834292339 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7968510067.

It is not an unprimeable number, because it can be changed into a prime (7968510007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2550813 + ... + 2553934.

It is an arithmetic number, because the mean of its divisors is an integer number (1143463552).

Almost surely, 27968510067 is an apocalyptic number.

7968510067 is a deficient number, since it is larger than the sum of its proper divisors (1179198349).

7968510067 is a wasteful number, since it uses less digits than its factorization.

7968510067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5104977.

The product of its (nonzero) digits is 635040, while the sum is 49.

The square root of 7968510067 is about 89266.5114530640. The cubic root of 7968510067 is about 1997.3723882568.

The spelling of 7968510067 in words is "seven billion, nine hundred sixty-eight million, five hundred ten thousand, sixty-seven".

Divisors: 1 7 223 1561 5104747 35733229 1138358581 7968510067