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256034245 = 5307916631
BaseRepresentation
bin11110100001011…
…00010111000101
3122211202212221211
433100230113011
51011021043440
641223411421
76226153345
oct1720542705
9584685854
10256034245
11121585355
12718b3b71
134107616c
142600ad25
1517726eea
hexf42c5c5

256034245 has 8 divisors (see below), whose sum is σ = 307359360. Its totient is φ = 204748560.

The previous prime is 256034227. The next prime is 256034267. The reversal of 256034245 is 542430652.

256034245 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 256034245 - 211 = 256032197 is a prime.

It is a super-2 number, since 2×2560342452 = 131107069225440050, which contains 22 as substring.

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, 7080 + ... + 23710.

It is an arithmetic number, because the mean of its divisors is an integer number (38419920).

Almost surely, 2256034245 is an apocalyptic number.

It is an amenable number.

256034245 is a deficient number, since it is larger than the sum of its proper divisors (51325115).

256034245 is a wasteful number, since it uses less digits than its factorization.

256034245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19715.

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 256034245 is about 16001.0701204638. The cubic root of 256034245 is about 634.9887323109.

Adding to 256034245 its reverse (542430652), we get a palindrome (798464897).

The spelling of 256034245 in words is "two hundred fifty-six million, thirty-four thousand, two hundred forty-five".

Divisors: 1 5 3079 15395 16631 83155 51206849 256034245