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68512375 = 53548099
BaseRepresentation
bin1000001010101…
…10101001110111
311202220210022101
410011112221313
5120014344000
610444242531
71461226351
oct405265167
9152823271
1068512375
11357453a8
121ab40447
131126a689
1491560d1
156034e6a
hex4156a77

68512375 has 8 divisors (see below), whose sum is σ = 85503600. Its totient is φ = 54809800.

The previous prime is 68512357. The next prime is 68512399. The reversal of 68512375 is 57321586.

It is not a de Polignac number, because 68512375 - 25 = 68512343 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273925 + ... + 274174.

It is an arithmetic number, because the mean of its divisors is an integer number (10687950).

Almost surely, 268512375 is an apocalyptic number.

68512375 is a deficient number, since it is larger than the sum of its proper divisors (16991225).

68512375 is an equidigital number, since it uses as much as digits as its factorization.

68512375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548114 (or 548104 counting only the distinct ones).

The product of its digits is 50400, while the sum is 37.

The square root of 68512375 is about 8277.2202459521. The cubic root of 68512375 is about 409.1881117694.

The spelling of 68512375 in words is "sixty-eight million, five hundred twelve thousand, three hundred seventy-five".

Divisors: 1 5 25 125 548099 2740495 13702475 68512375