Base | Representation |
---|---|
bin | 100010100000… |
… | …0000100111100 |
3 | 1021000222102021 |
4 | 1011000010330 |
5 | 14112311002 |
6 | 1443405524 |
7 | 306514300 |
oct | 105000474 |
9 | 37028367 |
10 | 18088252 |
11 | a234a76 |
12 | 60838a4 |
13 | 3994210 |
14 | 258bd00 |
15 | 18c4737 |
hex | 114013c |
18088252 has 72 divisors (see below), whose sum is σ = 41112960. Its totient is φ = 6894720.
The previous prime is 18088219. The next prime is 18088253. The reversal of 18088252 is 25288081.
It is a happy number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18088253) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78874 + ... + 79102.
Almost surely, 218088252 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 18088252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20556480).
18088252 is an abundant number, since it is smaller than the sum of its proper divisors (23024708).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18088252 is a wasteful number, since it uses less digits than its factorization.
18088252 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 291 (or 282 counting only the distinct ones).
The product of its (nonzero) digits is 10240, while the sum is 34.
The square root of 18088252 is about 4253.0285679737. The cubic root of 18088252 is about 262.5017481365.
The spelling of 18088252 in words is "eighteen million, eighty-eight thousand, two hundred fifty-two".
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