Base | Representation |
---|---|
bin | 101100001000… |
… | …1110011100101 |
3 | 1121112201022111 |
4 | 1120101303211 |
5 | 21411012410 |
6 | 2144001021 |
7 | 400462144 |
oct | 130216345 |
9 | 47481274 |
10 | 23141605 |
11 | 120766a3 |
12 | 7900171 |
13 | 4a43376 |
14 | 310575b |
15 | 2071b8a |
hex | 1611ce5 |
23141605 has 4 divisors (see below), whose sum is σ = 27769932. Its totient is φ = 18513280.
The previous prime is 23141603. The next prime is 23141627. The reversal of 23141605 is 50614132.
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 11404129 + 11737476 = 3377^2 + 3426^2 .
It is not a de Polignac number, because 23141605 - 21 = 23141603 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23141603) 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, 2314156 + ... + 2314165.
It is an arithmetic number, because the mean of its divisors is an integer number (6942483).
Almost surely, 223141605 is an apocalyptic number.
It is an amenable number.
23141605 is a deficient number, since it is larger than the sum of its proper divisors (4628327).
23141605 is an equidigital number, since it uses as much as digits as its factorization.
23141605 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4628326.
The product of its (nonzero) digits is 720, while the sum is 22.
The square root of 23141605 is about 4810.5722112863. The cubic root of 23141605 is about 284.9691358800.
Adding to 23141605 its reverse (50614132), we get a palindrome (73755737).
The spelling of 23141605 in words is "twenty-three million, one hundred forty-one thousand, six hundred five".
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