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68943 = 37367
BaseRepresentation
bin10000110101001111
310111120110
4100311033
54201233
61251103
7405000
oct206517
9114513
1068943
1147886
1233a93
13254c4
141b1a7
1515663
hex10d4f

68943 has 16 divisors (see below), whose sum is σ = 108800. Its totient is φ = 38808.

The previous prime is 68927. The next prime is 68947. The reversal of 68943 is 34986.

It is not a de Polignac number, because 68943 - 24 = 68927 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 996 + ... + 1062.

It is an arithmetic number, because the mean of its divisors is an integer number (6800).

268943 is an apocalyptic number.

68943 is a deficient number, since it is larger than the sum of its proper divisors (39857).

68943 is an equidigital number, since it uses as much as digits as its factorization.

68943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91 (or 77 counting only the distinct ones).

The product of its digits is 5184, while the sum is 30.

The square root of 68943 is about 262.5699906692. The cubic root of 68943 is about 41.0043620186.

The spelling of 68943 in words is "sixty-eight thousand, nine hundred forty-three".

Divisors: 1 3 7 21 49 67 147 201 343 469 1029 1407 3283 9849 22981 68943