Base | Representation |
---|---|
bin | 101101011100… |
… | …1111001111001 |
3 | 1122211200210200 |
4 | 1122321321321 |
5 | 22100031022 |
6 | 2210432413 |
7 | 406360422 |
oct | 132717171 |
9 | 48750720 |
10 | 23830137 |
11 | 124a6a31 |
12 | 7b92709 |
13 | 4c24896 |
14 | 3244649 |
15 | 215abac |
hex | 16b9e79 |
23830137 has 6 divisors (see below), whose sum is σ = 34421322. Its totient is φ = 15886752.
The previous prime is 23830067. The next prime is 23830151. The reversal of 23830137 is 73103832.
It can be written as a sum of positive squares in only one way, i.e., 13660416 + 10169721 = 3696^2 + 3189^2 .
It is not a de Polignac number, because 23830137 - 223 = 15441529 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 23830137.
It is not an unprimeable number, because it can be changed into a prime (23830187) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1323888 + ... + 1323905.
It is an arithmetic number, because the mean of its divisors is an integer number (5736887).
Almost surely, 223830137 is an apocalyptic number.
It is an amenable number.
23830137 is a deficient number, since it is larger than the sum of its proper divisors (10591185).
23830137 is a wasteful number, since it uses less digits than its factorization.
23830137 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2647799 (or 2647796 counting only the distinct ones).
The product of its (nonzero) digits is 3024, while the sum is 27.
The square root of 23830137 is about 4881.6121312534. The cubic root of 23830137 is about 287.7677888048.
Adding to 23830137 its reverse (73103832), we get a palindrome (96933969).
The spelling of 23830137 in words is "twenty-three million, eight hundred thirty thousand, one hundred thirty-seven".
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