Base | Representation |
---|---|
bin | 101101000100… |
… | …1000100110010 |
3 | 1122110112110000 |
4 | 1122021010302 |
5 | 22022131010 |
6 | 2202250430 |
7 | 404565336 |
oct | 132110462 |
9 | 48415400 |
10 | 23630130 |
11 | 1237a737 |
12 | 7ab6a16 |
13 | 4b84834 |
14 | 31d17c6 |
15 | 211b7c0 |
hex | 1689132 |
23630130 has 40 divisors (see below), whose sum is σ = 63540972. Its totient is φ = 6301152.
The previous prime is 23630083. The next prime is 23630137. The reversal of 23630130 is 3103632.
It is a happy number.
23630130 is a `hidden beast` number, since 2 + 3 + 630 + 1 + 30 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 21316689 + 2313441 = 4617^2 + 1521^2 .
It is a Harshad number since it is a multiple of its sum of digits (18).
It is not an unprimeable number, because it can be changed into a prime (23630137) by changing a digit.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13777 + ... + 15396.
Almost surely, 223630130 is an apocalyptic number.
23630130 is an abundant number, since it is smaller than the sum of its proper divisors (39910842).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23630130 is a wasteful number, since it uses less digits than its factorization.
23630130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 29192 (or 29183 counting only the distinct ones).
The product of its (nonzero) digits is 324, while the sum is 18.
The square root of 23630130 is about 4861.0832126184. The cubic root of 23630130 is about 286.9604448799.
Adding to 23630130 its reverse (3103632), we get a palindrome (26733762).
The spelling of 23630130 in words is "twenty-three million, six hundred thirty thousand, one hundred thirty".
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