Search a number
BaseRepresentation
bin10000101111111000
310111002202
4100233320
54143400
61245332
7404000
oct205770
9114082
1068600
11475a4
1233848
13252bc
141b000
15154d5
hex10bf8

68600 has 48 divisors (see below), whose sum is σ = 186000. Its totient is φ = 23520.

The previous prime is 68597. The next prime is 68611. The reversal of 68600 is 686.

Multipling 68600 by its reverse (686), we get a square (47059600 = 68602).

68600 divided by its reverse (686) gives a square (100 = 102).

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9797 + ... + 9803.

It is an arithmetic number, because the mean of its divisors is an integer number (3875).

268600 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93000).

68600 is an abundant number, since it is smaller than the sum of its proper divisors (117400).

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

68600 is a wasteful number, since it uses less digits than its factorization.

68600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37 (or 14 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 68600 is about 261.9160170742. The cubic root of 68600 is about 40.9362483350.

The spelling of 68600 in words is "sixty-eight thousand, six hundred".