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68816067 = 378729147
BaseRepresentation
bin1000001101000…
…00110011000011
311210111012220020
410012200303003
5120104103232
610454544523
71463632635
oct406406303
9153435806
1068816067
1135932591
121b068143
1311345988
1491d4a55
156094e2c
hex41a0cc3

68816067 has 8 divisors (see below), whose sum is σ = 91874496. Its totient is φ = 45817512.

The previous prime is 68816021. The next prime is 68816089. The reversal of 68816067 is 76061886.

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

It is not a de Polignac number, because 68816067 - 211 = 68814019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68816767) 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, 12213 + ... + 16934.

It is an arithmetic number, because the mean of its divisors is an integer number (11484312).

Almost surely, 268816067 is an apocalyptic number.

68816067 is a deficient number, since it is larger than the sum of its proper divisors (23058429).

68816067 is a wasteful number, since it uses less digits than its factorization.

68816067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29937.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 68816067 is about 8295.5450092203. The cubic root of 68816067 is about 409.7918177692.

The spelling of 68816067 in words is "sixty-eight million, eight hundred sixteen thousand, sixty-seven".

Divisors: 1 3 787 2361 29147 87441 22938689 68816067