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68287125 = 353182099
BaseRepresentation
bin1000001000111…
…11101010010101
311202111100022210
410010133222111
5114440142000
610435344033
71456300554
oct404375225
9152440283
1068287125
1135601145
121aa52019
13111bbcaa
1490d7d9b
155edd350
hex411fa95

68287125 has 16 divisors (see below), whose sum is σ = 113630400. Its totient is φ = 36419600.

The previous prime is 68287111. The next prime is 68287129. The reversal of 68287125 is 52178286.

It is not a de Polignac number, because 68287125 - 26 = 68287061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68287129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90675 + ... + 91424.

It is an arithmetic number, because the mean of its divisors is an integer number (7101900).

Almost surely, 268287125 is an apocalyptic number.

It is an amenable number.

68287125 is a deficient number, since it is larger than the sum of its proper divisors (45343275).

68287125 is a wasteful number, since it uses less digits than its factorization.

68287125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182117 (or 182107 counting only the distinct ones).

The product of its digits is 53760, while the sum is 39.

The square root of 68287125 is about 8263.6024226726. The cubic root of 68287125 is about 408.7391864640.

The spelling of 68287125 in words is "sixty-eight million, two hundred eighty-seven thousand, one hundred twenty-five".

Divisors: 1 3 5 15 25 75 125 375 182099 546297 910495 2731485 4552475 13657425 22762375 68287125