Base | Representation |
---|---|
bin | 101100101000… |
… | …1111010101101 |
3 | 1122001001112102 |
4 | 1121101322231 |
5 | 21442413310 |
6 | 2153344445 |
7 | 402634556 |
oct | 131217255 |
9 | 48031472 |
10 | 23404205 |
11 | 12235a20 |
12 | 7a08125 |
13 | 4b05a56 |
14 | 317332d |
15 | 20c48a5 |
hex | 1651ead |
23404205 has 16 divisors (see below), whose sum is σ = 30820608. Its totient is φ = 16920000.
The previous prime is 23404193. The next prime is 23404211. The reversal of 23404205 is 50240432.
It is not a de Polignac number, because 23404205 - 214 = 23387821 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8780 + ... + 11130.
It is an arithmetic number, because the mean of its divisors is an integer number (1926288).
Almost surely, 223404205 is an apocalyptic number.
It is an amenable number.
23404205 is a deficient number, since it is larger than the sum of its proper divisors (7416403).
23404205 is a wasteful number, since it uses less digits than its factorization.
23404205 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2548.
The product of its (nonzero) digits is 960, while the sum is 20.
The square root of 23404205 is about 4837.7892678371. The cubic root of 23404205 is about 286.0429826021.
Adding to 23404205 its reverse (50240432), we get a palindrome (73644637).
The spelling of 23404205 in words is "twenty-three million, four hundred four thousand, two hundred five".
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