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68397 = 373257
BaseRepresentation
bin10000101100101101
310110211020
4100230231
54142042
61244353
7403260
oct205455
9113736
1068397
114742a
12336b9
1325194
141acd7
15153ec
hex10b2d

68397 has 8 divisors (see below), whose sum is σ = 104256. Its totient is φ = 39072.

The previous prime is 68389. The next prime is 68399. The reversal of 68397 is 79386.

It is a happy number.

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

It is not a de Polignac number, because 68397 - 23 = 68389 is a prime.

68397 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1608 + ... + 1649.

It is an arithmetic number, because the mean of its divisors is an integer number (13032).

268397 is an apocalyptic number.

It is an amenable number.

68397 is a deficient number, since it is larger than the sum of its proper divisors (35859).

68397 is a wasteful number, since it uses less digits than its factorization.

68397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3267.

The product of its digits is 9072, while the sum is 33.

The square root of 68397 is about 261.5282011562. The cubic root of 68397 is about 40.8958291469.

It can be divided in two parts, 683 and 97, that added together give a triangular number (780 = T39).

The spelling of 68397 in words is "sixty-eight thousand, three hundred ninety-seven".

Divisors: 1 3 7 21 3257 9771 22799 68397