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256162630 = 25171506839
BaseRepresentation
bin11110100010010…
…11101101000110
3122212000102001211
433101023231012
51011034201010
641230242034
76230226553
oct1721135506
9585012054
10256162630
11121662859
127195631a
13410bc729
1426041a2a
151775008a
hexf44bb46

256162630 has 16 divisors (see below), whose sum is σ = 488216160. Its totient is φ = 96437632.

The previous prime is 256162589. The next prime is 256162633. The reversal of 256162630 is 36261652.

256162630 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 256162592 and 256162601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256162633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 753250 + ... + 753589.

It is an arithmetic number, because the mean of its divisors is an integer number (30513510).

Almost surely, 2256162630 is an apocalyptic number.

256162630 is a deficient number, since it is larger than the sum of its proper divisors (232053530).

256162630 is a wasteful number, since it uses less digits than its factorization.

256162630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506863.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 256162630 is about 16005.0813806116. The cubic root of 256162630 is about 635.0948501546.

The spelling of 256162630 in words is "two hundred fifty-six million, one hundred sixty-two thousand, six hundred thirty".

Divisors: 1 2 5 10 17 34 85 170 1506839 3013678 7534195 15068390 25616263 51232526 128081315 256162630