[go: up one dir, main page]

Search a number
-
+
725888 = 2753107
BaseRepresentation
bin10110001001110000000
31100212201202
42301032000
5141212023
623320332
76112202
oct2611600
91325652
10725888
11456409
122b00a8
131c5527
1414c772
15e5128
hexb1380

725888 has 32 divisors (see below), whose sum is σ = 1487160. Its totient is φ = 352768.

The previous prime is 725867. The next prime is 725891. The reversal of 725888 is 888527.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6731 + ... + 6837.

2725888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 725888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (743580).

725888 is an abundant number, since it is smaller than the sum of its proper divisors (761272).

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

725888 is a wasteful number, since it uses less digits than its factorization.

725888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174 (or 162 counting only the distinct ones).

The product of its digits is 35840, while the sum is 38.

The square root of 725888 is about 851.9906102769. The cubic root of 725888 is about 89.8717514912.

The spelling of 725888 in words is "seven hundred twenty-five thousand, eight hundred eighty-eight".

Divisors: 1 2 4 8 16 32 53 64 106 107 128 212 214 424 428 848 856 1696 1712 3392 3424 5671 6784 6848 11342 13696 22684 45368 90736 181472 362944 725888