Search a number
-
+
68137265 = 571946779
BaseRepresentation
bin1000000111110…
…11000100110001
311202012201202102
410003323010301
5114420343030
610432230145
71455104630
oct403730461
9152181672
1068137265
1135509599
121a99b355
1311168a11
149099517
155eadc45
hex40fb131

68137265 has 8 divisors (see below), whose sum is σ = 93445440. Its totient is φ = 46722672.

The previous prime is 68137231. The next prime is 68137297. The reversal of 68137265 is 56273186.

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

It is a cyclic number.

It is not a de Polignac number, because 68137265 - 28 = 68137009 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 973355 + ... + 973424.

It is an arithmetic number, because the mean of its divisors is an integer number (11680680).

Almost surely, 268137265 is an apocalyptic number.

It is an amenable number.

68137265 is a deficient number, since it is larger than the sum of its proper divisors (25308175).

68137265 is a wasteful number, since it uses less digits than its factorization.

68137265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1946791.

The product of its digits is 60480, while the sum is 38.

The square root of 68137265 is about 8254.5299684476. The cubic root of 68137265 is about 408.4399669679.

The spelling of 68137265 in words is "sixty-eight million, one hundred thirty-seven thousand, two hundred sixty-five".

Divisors: 1 5 7 35 1946779 9733895 13627453 68137265