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256068245 = 571721319
BaseRepresentation
bin11110100001101…
…00101010010101
3122211211121121002
433100310222111
51011023140440
641224233045
76226354436
oct1720645225
9584747532
10256068245
111215a8954
127190b785
1341088794
142601948d
1517732115
hexf434a95

256068245 has 8 divisors (see below), whose sum is σ = 311610240. Its totient is φ = 201969040.

The previous prime is 256068233. The next prime is 256068251. The reversal of 256068245 is 542860652.

256068245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 256068245 - 26 = 256068181 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 256068199 and 256068208.

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, 360305 + ... + 361014.

It is an arithmetic number, because the mean of its divisors is an integer number (38951280).

Almost surely, 2256068245 is an apocalyptic number.

It is an amenable number.

256068245 is a deficient number, since it is larger than the sum of its proper divisors (55541995).

256068245 is an equidigital number, since it uses as much as digits as its factorization.

256068245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721395.

The product of its (nonzero) digits is 115200, while the sum is 38.

The square root of 256068245 is about 16002.1325141370. The cubic root of 256068245 is about 635.0168387871.

The spelling of 256068245 in words is "two hundred fifty-six million, sixty-eight thousand, two hundred forty-five".

Divisors: 1 5 71 355 721319 3606595 51213649 256068245