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68429 = 411669
BaseRepresentation
bin10000101101001101
310110212102
4100231031
54142204
61244445
7403334
oct205515
9113772
1068429
1147459
1233725
13251ba
141ad1b
151541e
hex10b4d

68429 has 4 divisors (see below), whose sum is σ = 70140. Its totient is φ = 66720.

The previous prime is 68399. The next prime is 68437. The reversal of 68429 is 92486.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16900 + 51529 = 130^2 + 227^2 .

It is a cyclic number.

It is not a de Polignac number, because 68429 - 212 = 64333 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68449) 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, 794 + ... + 875.

It is an arithmetic number, because the mean of its divisors is an integer number (17535).

268429 is an apocalyptic number.

It is an amenable number.

68429 is a deficient number, since it is larger than the sum of its proper divisors (1711).

68429 is a wasteful number, since it uses less digits than its factorization.

68429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1710.

The product of its digits is 3456, while the sum is 29.

The square root of 68429 is about 261.5893728728. The cubic root of 68429 is about 40.9022059495.

The spelling of 68429 in words is "sixty-eight thousand, four hundred twenty-nine".

Divisors: 1 41 1669 68429