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68083518 = 2311347253
BaseRepresentation
bin1000000111011…
…01111100111110
311202010000000210
410003231330332
5114412133033
610431133250
71454462136
oct403557476
9152100023
1068083518
1135482178
121a974226
131114a409
149083ac6
155e9cd63
hex40edf3e

68083518 has 8 divisors (see below), whose sum is σ = 136167048. Its totient is φ = 22694504.

The previous prime is 68083513. The next prime is 68083529. The reversal of 68083518 is 81538086.

It is a happy number.

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

68083518 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68083511) 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, 5673621 + ... + 5673632.

It is an arithmetic number, because the mean of its divisors is an integer number (17020881).

Almost surely, 268083518 is an apocalyptic number.

68083518 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68083518 is a wasteful number, since it uses less digits than its factorization.

68083518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11347258.

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 68083518 is about 8251.2737198568. The cubic root of 68083518 is about 408.3325455860.

The spelling of 68083518 in words is "sixty-eight million, eighty-three thousand, five hundred eighteen".

Divisors: 1 2 3 6 11347253 22694506 34041759 68083518