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68875 = 531929
BaseRepresentation
bin10000110100001011
310111110221
4100310023
54201000
61250511
7404542
oct206413
9114427
1068875
1147824
1233a37
1325471
141b159
151561a
hex10d0b

68875 has 16 divisors (see below), whose sum is σ = 93600. Its totient is φ = 50400.

The previous prime is 68863. The next prime is 68879. The reversal of 68875 is 57886.

It is not a de Polignac number, because 68875 - 215 = 36107 is a prime.

68875 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 68875.

It is not an unprimeable number, because it can be changed into a prime (68879) 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 15 ways as a sum of consecutive naturals, for example, 2361 + ... + 2389.

It is an arithmetic number, because the mean of its divisors is an integer number (5850).

268875 is an apocalyptic number.

68875 is a deficient number, since it is larger than the sum of its proper divisors (24725).

68875 is a wasteful number, since it uses less digits than its factorization.

68875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63 (or 53 counting only the distinct ones).

The product of its digits is 13440, while the sum is 34.

The square root of 68875 is about 262.4404694402. The cubic root of 68875 is about 40.9908764153.

The spelling of 68875 in words is "sixty-eight thousand, eight hundred seventy-five".

Divisors: 1 5 19 25 29 95 125 145 475 551 725 2375 2755 3625 13775 68875