Base | Representation |
---|---|
bin | 101100010000… |
… | …1110100100001 |
3 | 1121200001021222 |
4 | 1120201310201 |
5 | 21420112301 |
6 | 2145224425 |
7 | 401154323 |
oct | 130416441 |
9 | 47601258 |
10 | 23207201 |
11 | 12110a06 |
12 | 7932115 |
13 | 4a67194 |
14 | 3121613 |
15 | 208631b |
hex | 1621d21 |
23207201 has 4 divisors (see below), whose sum is σ = 23258004. Its totient is φ = 23156400.
The previous prime is 23207183. The next prime is 23207203. The reversal of 23207201 is 10270232.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 10240000 + 12967201 = 3200^2 + 3601^2 .
It is a cyclic number.
It is not a de Polignac number, because 23207201 - 218 = 22945057 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 23207201.
It is not an unprimeable number, because it can be changed into a prime (23207203) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24710 + ... + 25631.
It is an arithmetic number, because the mean of its divisors is an integer number (5814501).
Almost surely, 223207201 is an apocalyptic number.
It is an amenable number.
23207201 is a deficient number, since it is larger than the sum of its proper divisors (50803).
23207201 is an equidigital number, since it uses as much as digits as its factorization.
23207201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 50802.
The product of its (nonzero) digits is 168, while the sum is 17.
The square root of 23207201 is about 4817.3852866467. The cubic root of 23207201 is about 285.2381348148.
Adding to 23207201 its reverse (10270232), we get a palindrome (33477433).
The spelling of 23207201 in words is "twenty-three million, two hundred seven thousand, two hundred one".
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