Search a number
-
+
256038 = 23139307
BaseRepresentation
bin111110100000100110
3111000012220
4332200212
531143123
65253210
72114316
oct764046
9430186
10256038
11165402
12104206
138c703
1469446
1550ce3
hex3e826

256038 has 16 divisors (see below), whose sum is σ = 517440. Its totient is φ = 84456.

The previous prime is 256033. The next prime is 256049. The reversal of 256038 is 830652.

256038 is digitally balanced in base 2, 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 = 255999 and 256017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256031) 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, 681 + ... + 987.

It is an arithmetic number, because the mean of its divisors is an integer number (32340).

2256038 is an apocalyptic number.

256038 is an abundant number, since it is smaller than the sum of its proper divisors (261402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

256038 is a wasteful number, since it uses less digits than its factorization.

256038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 256038 is about 506.0019762807. The cubic root of 256038 is about 63.4991836545.

The spelling of 256038 in words is "two hundred fifty-six thousand, thirty-eight".

Divisors: 1 2 3 6 139 278 307 417 614 834 921 1842 42673 85346 128019 256038