Cookie Consent by FreePrivacyPolicy.com
Search a number
68035871 = 313217367
BaseRepresentation
bin1000000111000…
…10010100011111
311202000120200002
410003202110133
5114404121441
610430124515
71454203211
oct403422437
9152016602
1068035871
113544a3a2
121a95073b
1311131817
1490705b1
155e8db9b
hex40e251f

68035871 has 4 divisors (see below), whose sum is σ = 68253552. Its totient is φ = 67818192.

The previous prime is 68035823. The next prime is 68035873. The reversal of 68035871 is 17853086.

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 68035871 - 226 = 927007 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 (68035873) 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, 108371 + ... + 108996.

It is an arithmetic number, because the mean of its divisors is an integer number (17063388).

Almost surely, 268035871 is an apocalyptic number.

68035871 is a deficient number, since it is larger than the sum of its proper divisors (217681).

68035871 is a wasteful number, since it uses less digits than its factorization.

68035871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217680.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 68035871 is about 8248.3859633264. The cubic root of 68035871 is about 408.2372686783.

The spelling of 68035871 in words is "sixty-eight million, thirty-five thousand, eight hundred seventy-one".

Divisors: 1 313 217367 68035871