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256424230 = 2525642423
BaseRepresentation
bin11110100100010…
…11100100100110
3122212111200220201
433102023210212
51011121033410
641240021114
76232366336
oct1722134446
9585450821
10256424230
11121821357
1271a6179a
134118181a
14260ad0c6
15177a283a
hexf48b926

256424230 has 8 divisors (see below), whose sum is σ = 461563632. Its totient is φ = 102569688.

The previous prime is 256424227. The next prime is 256424261. The reversal of 256424230 is 32424652.

256424230 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 a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12821202 + ... + 12821221.

It is an arithmetic number, because the mean of its divisors is an integer number (57695454).

Almost surely, 2256424230 is an apocalyptic number.

256424230 is a deficient number, since it is larger than the sum of its proper divisors (205139402).

256424230 is a wasteful number, since it uses less digits than its factorization.

256424230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25642430.

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 256424230 is about 16013.2516997642. The cubic root of 256424230 is about 635.3109684451.

Adding to 256424230 its reverse (32424652), we get a palindrome (288848882).

The spelling of 256424230 in words is "two hundred fifty-six million, four hundred twenty-four thousand, two hundred thirty".

Divisors: 1 2 5 10 25642423 51284846 128212115 256424230