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68747 = 722361
BaseRepresentation
bin10000110010001011
310111022012
4100302023
54144442
61250135
7404300
oct206213
9114265
1068747
1147718
123394b
13253a3
141b0a7
1515582
hex10c8b

68747 has 12 divisors (see below), whose sum is σ = 84816. Its totient is φ = 55440.

The previous prime is 68743. The next prime is 68749. The reversal of 68747 is 74786.

It is not a de Polignac number, because 68747 - 22 = 68743 is a prime.

It is a Duffinian number.

Its product of digits (9408) is a multiple of the sum of its prime factors (98).

It is not an unprimeable number, because it can be changed into a prime (68743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1097 + ... + 1157.

It is an arithmetic number, because the mean of its divisors is an integer number (7068).

268747 is an apocalyptic number.

68747 is a deficient number, since it is larger than the sum of its proper divisors (16069).

68747 is a wasteful number, since it uses less digits than its factorization.

68747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98 (or 91 counting only the distinct ones).

The product of its digits is 9408, while the sum is 32.

The square root of 68747 is about 262.1964912046. The cubic root of 68747 is about 40.9654676513.

The spelling of 68747 in words is "sixty-eight thousand, seven hundred forty-seven".

Divisors: 1 7 23 49 61 161 427 1127 1403 2989 9821 68747