Base | Representation |
---|---|
bin | 101100010001… |
… | …1001111001001 |
3 | 1121200100020210 |
4 | 1120203033021 |
5 | 21420304001 |
6 | 2145311333 |
7 | 401210250 |
oct | 130431711 |
9 | 47610223 |
10 | 23213001 |
11 | 121152a9 |
12 | 7935549 |
13 | 4a69a06 |
14 | 3123797 |
15 | 2087dd6 |
hex | 16233c9 |
23213001 has 16 divisors (see below), whose sum is σ = 35954048. Its totient is φ = 13046400.
The previous prime is 23212999. The next prime is 23213033. The reversal of 23213001 is 10031232.
It is a happy number.
It is not a de Polignac number, because 23213001 - 21 = 23212999 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (23213401) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7780 + ... + 10341.
It is an arithmetic number, because the mean of its divisors is an integer number (2247128).
Almost surely, 223213001 is an apocalyptic number.
23213001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
It is an amenable number.
23213001 is a deficient number, since it is larger than the sum of its proper divisors (12741047).
23213001 is a wasteful number, since it uses less digits than its factorization.
23213001 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18192.
The product of its (nonzero) digits is 36, while the sum is 12.
The square root of 23213001 is about 4817.9872353505. The cubic root of 23213001 is about 285.2618953045.
Adding to 23213001 its reverse (10031232), we get a palindrome (33244233).
The spelling of 23213001 in words is "twenty-three million, two hundred thirteen thousand, one".
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