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68313084 = 2237813251
BaseRepresentation
bin1000001001001…
…01111111111100
311202112122221020
410010211333330
5114442004314
610440104140
71456436340
oct404457774
9152478836
1068313084
11356196a4
121aa65050
13111caa58
149103620
155ee5da9
hex4125ffc

68313084 has 24 divisors (see below), whose sum is σ = 182168448. Its totient is φ = 19518000.

The previous prime is 68313083. The next prime is 68313103. The reversal of 68313084 is 48031386.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68313083) 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, 406542 + ... + 406709.

It is an arithmetic number, because the mean of its divisors is an integer number (7590352).

Almost surely, 268313084 is an apocalyptic number.

It is an amenable number.

68313084 is an abundant number, since it is smaller than the sum of its proper divisors (113855364).

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

68313084 is a wasteful number, since it uses less digits than its factorization.

68313084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813265 (or 813263 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 68313084 is about 8265.1729564480. The cubic root of 68313084 is about 408.7909732702.

The spelling of 68313084 in words is "sixty-eight million, three hundred thirteen thousand, eighty-four".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 813251 1626502 2439753 3253004 4879506 5692757 9759012 11385514 17078271 22771028 34156542 68313084