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256202230 = 2525620223
BaseRepresentation
bin11110100010101…
…01010111110110
3122212002102101111
433101111113312
51011041432410
641231145234
76230453164
oct1721252766
9585072344
10256202230
1112168a589
127197521a
134110476b
1426052234
151775bb8a
hexf4555f6

256202230 has 8 divisors (see below), whose sum is σ = 461164032. Its totient is φ = 102480888.

The previous prime is 256202209. The next prime is 256202231. The reversal of 256202230 is 32202652.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256202231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12810102 + ... + 12810121.

It is an arithmetic number, because the mean of its divisors is an integer number (57645504).

Almost surely, 2256202230 is an apocalyptic number.

256202230 is a deficient number, since it is larger than the sum of its proper divisors (204961802).

256202230 is a wasteful number, since it uses less digits than its factorization.

256202230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25620230.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 256202230 is about 16006.3184399162. The cubic root of 256202230 is about 635.1275747564.

Adding to 256202230 its reverse (32202652), we get a palindrome (288404882).

The spelling of 256202230 in words is "two hundred fifty-six million, two hundred two thousand, two hundred thirty".

Divisors: 1 2 5 10 25620223 51240446 128101115 256202230