Search a number
-
+
256088 = 23717269
BaseRepresentation
bin111110100001011000
3111000021202
4332201120
531143323
65253332
72114420
oct764130
9430252
10256088
11165448
12104248
138c741
1469480
1550d28
hex3e858

256088 has 32 divisors (see below), whose sum is σ = 583200. Its totient is φ = 102912.

The previous prime is 256079. The next prime is 256093. The reversal of 256088 is 880652.

It is a happy number.

256088 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 256088.

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, 818 + ... + 1086.

It is an arithmetic number, because the mean of its divisors is an integer number (18225).

2256088 is an apocalyptic number.

256088 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 256088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (291600).

256088 is an abundant number, since it is smaller than the sum of its proper divisors (327112).

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

256088 is a wasteful number, since it uses less digits than its factorization.

256088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299 (or 295 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 256088 is about 506.0513807905. The cubic root of 256088 is about 63.5033168334.

The spelling of 256088 in words is "two hundred fifty-six thousand, eighty-eight".

Divisors: 1 2 4 7 8 14 17 28 34 56 68 119 136 238 269 476 538 952 1076 1883 2152 3766 4573 7532 9146 15064 18292 32011 36584 64022 128044 256088