Base | Representation |
---|---|
bin | 101101010000… |
… | …1101101100101 |
3 | 1122122122212121 |
4 | 1122201231211 |
5 | 22033343140 |
6 | 2204345541 |
7 | 405465502 |
oct | 132415545 |
9 | 48578777 |
10 | 23731045 |
11 | 12439538 |
12 | 7b452b1 |
13 | 4bbb750 |
14 | 321a4a9 |
15 | 213b64a |
hex | 16a1b65 |
23731045 has 16 divisors (see below), whose sum is σ = 30788352. Its totient is φ = 17455680.
The previous prime is 23730989. The next prime is 23731051. The reversal of 23731045 is 54013732.
It is not a de Polignac number, because 23731045 - 211 = 23728997 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
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 15 ways as a sum of consecutive naturals, for example, 20964 + ... + 22066.
It is an arithmetic number, because the mean of its divisors is an integer number (1924272).
Almost surely, 223731045 is an apocalyptic number.
It is an amenable number.
23731045 is a deficient number, since it is larger than the sum of its proper divisors (7057307).
23731045 is a wasteful number, since it uses less digits than its factorization.
23731045 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1452.
The product of its (nonzero) digits is 2520, while the sum is 25.
The square root of 23731045 is about 4871.4520422560. The cubic root of 23731045 is about 287.3683631775.
Adding to 23731045 its reverse (54013732), we get a palindrome (77744777).
The spelling of 23731045 in words is "twenty-three million, seven hundred thirty-one thousand, forty-five".
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