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67925 = 52111319
BaseRepresentation
bin10000100101010101
310110011202
4100211111
54133200
61242245
7402014
oct204525
9113152
1067925
1147040
1233385
1324bc0
141aa7b
15151d5
hex10955

67925 has 24 divisors (see below), whose sum is σ = 104160. Its totient is φ = 43200.

The previous prime is 67901. The next prime is 67927. The reversal of 67925 is 52976.

It is not a de Polignac number, because 67925 - 216 = 2389 is a prime.

It is a super-2 number, since 2×679252 = 9227611250, which contains 22 as substring.

It is a d-powerful number, because it can be written as 63 + 73 + 95 + 213 + 53 .

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67927) 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 23 ways as a sum of consecutive naturals, for example, 3566 + ... + 3584.

It is an arithmetic number, because the mean of its divisors is an integer number (4340).

267925 is an apocalyptic number.

67925 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

67925 is a deficient number, since it is larger than the sum of its proper divisors (36235).

67925 is a wasteful number, since it uses less digits than its factorization.

67925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53 (or 48 counting only the distinct ones).

The product of its digits is 3780, while the sum is 29.

The square root of 67925 is about 260.6242505984. The cubic root of 67925 is about 40.8015394139.

Subtracting from 67925 its sum of digits (29), we obtain a triangular number (67896 = T368).

The spelling of 67925 in words is "sixty-seven thousand, nine hundred twenty-five".

Divisors: 1 5 11 13 19 25 55 65 95 143 209 247 275 325 475 715 1045 1235 2717 3575 5225 6175 13585 67925