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68644382 = 273470167
BaseRepresentation
bin1000001011101…
…10111000011110
311210011111101112
410011312320132
5120033110012
610451142022
71462316252
oct405667036
9153144345
1068644382
11358255a4
121aba4912
13112b57a1
14918c262
15605e122
hex4176e1e

68644382 has 8 divisors (see below), whose sum is σ = 104377296. Its totient is φ = 33851952.

The previous prime is 68644369. The next prime is 68644399. The reversal of 68644382 is 28344686.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234938 + ... + 235229.

It is an arithmetic number, because the mean of its divisors is an integer number (13047162).

Almost surely, 268644382 is an apocalyptic number.

68644382 is a deficient number, since it is larger than the sum of its proper divisors (35732914).

68644382 is a wasteful number, since it uses less digits than its factorization.

68644382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470242.

The product of its digits is 221184, while the sum is 41.

The square root of 68644382 is about 8285.1905228546. The cubic root of 68644382 is about 409.4507457844.

The spelling of 68644382 in words is "sixty-eight million, six hundred forty-four thousand, three hundred eighty-two".

Divisors: 1 2 73 146 470167 940334 34322191 68644382