Search a number
-
+
68630 = 256863
BaseRepresentation
bin10000110000010110
310111010212
4100300112
54144010
61245422
7404042
oct206026
9114125
1068630
1147621
1233872
1325313
141b022
1515505
hex10c16

68630 has 8 divisors (see below), whose sum is σ = 123552. Its totient is φ = 27448.

The previous prime is 68611. The next prime is 68633. The reversal of 68630 is 3686.

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

It is a junction number, because it is equal to n+sod(n) for n = 68596 and 68605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3422 + ... + 3441.

It is an arithmetic number, because the mean of its divisors is an integer number (15444).

268630 is an apocalyptic number.

68630 is a deficient number, since it is larger than the sum of its proper divisors (54922).

68630 is a wasteful number, since it uses less digits than its factorization.

68630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6870.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 68630 is about 261.9732810803. The cubic root of 68630 is about 40.9422148484.

The spelling of 68630 in words is "sixty-eight thousand, six hundred thirty".

Divisors: 1 2 5 10 6863 13726 34315 68630