Base | Representation |
---|---|
bin | 101100011110… |
… | …1011000101001 |
3 | 1121212210011121 |
4 | 1120331120221 |
5 | 21432220410 |
6 | 2151455241 |
7 | 402134434 |
oct | 130753051 |
9 | 47783147 |
10 | 23320105 |
11 | 12188816 |
12 | 7987521 |
13 | 4aa66a3 |
14 | 315081b |
15 | 20a99da |
hex | 163d629 |
23320105 has 8 divisors (see below), whose sum is σ = 28074312. Its totient is φ = 18595968.
The previous prime is 23320097. The next prime is 23320109. The reversal of 23320105 is 50102332.
23320105 = T214 + T215 + ... + T530.
It can be written as a sum of positive squares in 4 ways, for example, as 700569 + 22619536 = 837^2 + 4756^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 23320105 - 23 = 23320097 is a prime.
It is a super-2 number, since 2×233201052 = 1087654594422050, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (23320109) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5772 + ... + 8941.
It is an arithmetic number, because the mean of its divisors is an integer number (3509289).
Almost surely, 223320105 is an apocalyptic number.
It is an amenable number.
23320105 is a deficient number, since it is larger than the sum of its proper divisors (4754207).
23320105 is a wasteful number, since it uses less digits than its factorization.
23320105 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15035.
The product of its (nonzero) digits is 180, while the sum is 16.
The square root of 23320105 is about 4829.0894586868. The cubic root of 23320105 is about 285.6999518404.
Adding to 23320105 its reverse (50102332), we get a palindrome (73422437).
The spelling of 23320105 in words is "twenty-three million, three hundred twenty thousand, one hundred five".
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