Base | Representation |
---|---|
bin | 101101011001… |
… | …1110001011111 |
3 | 1122210102100112 |
4 | 1122303301133 |
5 | 22043230043 |
6 | 2210120235 |
7 | 406224254 |
oct | 132636137 |
9 | 48712315 |
10 | 23805023 |
11 | 1248a080 |
12 | 7b8007b |
13 | 4c16318 |
14 | 323942b |
15 | 2153518 |
hex | 16b3c5f |
23805023 has 16 divisors (see below), whose sum is σ = 27841536. Its totient is φ = 20132640.
The previous prime is 23805017. The next prime is 23805029. The reversal of 23805023 is 32050832.
It is an interprime number because it is at equal distance from previous prime (23805017) and next prime (23805029).
It is not a de Polignac number, because 23805023 - 222 = 19610719 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (23).
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 23805023.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23805029) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8090 + ... + 10632.
It is an arithmetic number, because the mean of its divisors is an integer number (1740096).
Almost surely, 223805023 is an apocalyptic number.
23805023 is a gapful number since it is divisible by the number (23) formed by its first and last digit.
23805023 is a deficient number, since it is larger than the sum of its proper divisors (4036513).
23805023 is a wasteful number, since it uses less digits than its factorization.
23805023 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2614.
The product of its (nonzero) digits is 1440, while the sum is 23.
The square root of 23805023 is about 4879.0391472092. The cubic root of 23805023 is about 287.6666627878. Note that the first 5 decimals are identical.
Adding to 23805023 its reverse (32050832), we get a palindrome (55855855).
The spelling of 23805023 in words is "twenty-three million, eight hundred five thousand, twenty-three".
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