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68068067 = 653104239
BaseRepresentation
bin1000000111010…
…10001011100011
311202002012211112
410003222023203
5114411134232
610430533535
71454366114
oct403521343
9152065745
1068068067
1135471601
121a9672ab
1311143382
14907c20b
155e984b2
hex40ea2e3

68068067 has 4 divisors (see below), whose sum is σ = 68172960. Its totient is φ = 67963176.

The previous prime is 68068003. The next prime is 68068069. The reversal of 68068067 is 76086086.

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 68068067 - 26 = 68068003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68068069) 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, 51467 + ... + 52772.

It is an arithmetic number, because the mean of its divisors is an integer number (17043240).

Almost surely, 268068067 is an apocalyptic number.

68068067 is a deficient number, since it is larger than the sum of its proper divisors (104893).

68068067 is a wasteful number, since it uses less digits than its factorization.

68068067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104892.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 68068067 is about 8250.3373870406. The cubic root of 68068067 is about 408.3016540003.

The spelling of 68068067 in words is "sixty-eight million, sixty-eight thousand, sixty-seven".

Divisors: 1 653 104239 68068067