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68323655 = 571192461
BaseRepresentation
bin1000001001010…
…00100101000111
311202120012102202
410010220211013
5114442324110
610440225115
71456512221
oct404504507
9152505382
1068323655
1135626634
121aa6b19b
13112027ca
149107411
155ee90a5
hex4128947

68323655 has 8 divisors (see below), whose sum is σ = 83143584. Its totient is φ = 53888800.

The previous prime is 68323649. The next prime is 68323657. The reversal of 68323655 is 55632386.

It is a happy number.

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

It is not a de Polignac number, because 68323655 - 28 = 68323399 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 (68323657) 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, 95876 + ... + 96585.

It is an arithmetic number, because the mean of its divisors is an integer number (10392948).

Almost surely, 268323655 is an apocalyptic number.

68323655 is a deficient number, since it is larger than the sum of its proper divisors (14819929).

68323655 is a wasteful number, since it uses less digits than its factorization.

68323655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192537.

The product of its digits is 129600, while the sum is 38.

The square root of 68323655 is about 8265.8124222607. The cubic root of 68323655 is about 408.8120580866.

The spelling of 68323655 in words is "sixty-eight million, three hundred twenty-three thousand, six hundred fifty-five".

Divisors: 1 5 71 355 192461 962305 13664731 68323655