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225688 = 2328211
BaseRepresentation
bin110111000110011000
3102110120211
4313012120
524210223
64500504
71626661
oct670630
9373524
10225688
11144621
12aa734
137b958
145c368
1546d0d
hex37198

225688 has 8 divisors (see below), whose sum is σ = 423180. Its totient is φ = 112840.

The previous prime is 225683. The next prime is 225689. The reversal of 225688 is 886522.

225688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14098 + ... + 14113.

2225688 is an apocalyptic number.

It is an amenable number.

225688 is a deficient number, since it is larger than the sum of its proper divisors (197492).

225688 is a wasteful number, since it uses less digits than its factorization.

225688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28217 (or 28213 counting only the distinct ones).

The product of its digits is 7680, while the sum is 31.

The square root of 225688 is about 475.0663111609. The cubic root of 225688 is about 60.8839502825.

The spelling of 225688 in words is "two hundred twenty-five thousand, six hundred eighty-eight".

Divisors: 1 2 4 8 28211 56422 112844 225688