Base | Representation |
---|---|
bin | 101100101111… |
… | …0010001111101 |
3 | 1122010121222222 |
4 | 1121132101331 |
5 | 22001023340 |
6 | 2154415125 |
7 | 403235321 |
oct | 131362175 |
9 | 48117888 |
10 | 23454845 |
11 | 1226aa77 |
12 | 7a314a5 |
13 | 4b22b0b |
14 | 3187981 |
15 | 20d48b5 |
hex | 165e47d |
23454845 has 8 divisors (see below), whose sum is σ = 28395576. Its totient is φ = 18597376.
The previous prime is 23454841. The next prime is 23454857. The reversal of 23454845 is 54845432.
It can be written as a sum of positive squares in 4 ways, for example, as 395641 + 23059204 = 629^2 + 4802^2 .
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 23454845 - 22 = 23454841 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 (23454841) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20192 + ... + 21321.
It is an arithmetic number, because the mean of its divisors is an integer number (3549447).
Almost surely, 223454845 is an apocalyptic number.
It is an amenable number.
23454845 is a deficient number, since it is larger than the sum of its proper divisors (4940731).
23454845 is a wasteful number, since it uses less digits than its factorization.
23454845 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 41631.
The product of its digits is 76800, while the sum is 35.
The square root of 23454845 is about 4843.0202353490. The cubic root of 23454845 is about 286.2491390298.
The spelling of 23454845 in words is "twenty-three million, four hundred fifty-four thousand, eight hundred forty-five".
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