Search a number
-
+
68297385 = 3513714933
BaseRepresentation
bin1000001001000…
…10001010101001
311202111212101210
410010202022221
5114441004020
610435503333
71456342512
oct404421251
9152455353
1068297385
1135608922
121aa57b49
13111c3870
1490dba09
155ee13e0
hex41222a9

68297385 has 32 divisors (see below), whose sum is σ = 119363328. Its totient is φ = 33143040.

The previous prime is 68297363. The next prime is 68297393. The reversal of 68297385 is 58379286.

It is not a de Polignac number, because 68297385 - 29 = 68296873 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11379 + ... + 16311.

It is an arithmetic number, because the mean of its divisors is an integer number (3730104).

Almost surely, 268297385 is an apocalyptic number.

68297385 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

68297385 is a deficient number, since it is larger than the sum of its proper divisors (51065943).

68297385 is a wasteful number, since it uses less digits than its factorization.

68297385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5025.

The product of its digits is 725760, while the sum is 48.

The square root of 68297385 is about 8264.2231939850. The cubic root of 68297385 is about 408.7596561794.

The spelling of 68297385 in words is "sixty-eight million, two hundred ninety-seven thousand, three hundred eighty-five".

Divisors: 1 3 5 13 15 39 65 71 195 213 355 923 1065 2769 4615 4933 13845 14799 24665 64129 73995 192387 320645 350243 961935 1050729 1751215 4553159 5253645 13659477 22765795 68297385