Base | Representation |
---|---|
bin | 101011111101… |
… | …0111111010001 |
3 | 1121100222010000 |
4 | 1113322333101 |
5 | 21400020040 |
6 | 2142000213 |
7 | 366622521 |
oct | 127727721 |
9 | 47328100 |
10 | 23048145 |
11 | 1201245a |
12 | 7876069 |
13 | 4a0c973 |
14 | 30bd681 |
15 | 2054130 |
hex | 15fafd1 |
23048145 has 20 divisors (see below), whose sum is σ = 41316660. Its totient is φ = 12292128.
The previous prime is 23048143. The next prime is 23048147. The reversal of 23048145 is 54184032.
23048145 is nontrivially palindromic in base 8.
It is an interprime number because it is at equal distance from previous prime (23048143) and next prime (23048147).
It can be written as a sum of positive squares in 2 ways, for example, as 6718464 + 16329681 = 2592^2 + 4041^2 .
It is not a de Polignac number, because 23048145 - 21 = 23048143 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is not an unprimeable number, because it can be changed into a prime (23048143) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 28050 + ... + 28859.
It is an arithmetic number, because the mean of its divisors is an integer number (2065833).
Almost surely, 223048145 is an apocalyptic number.
It is an amenable number.
23048145 is a deficient number, since it is larger than the sum of its proper divisors (18268515).
23048145 is an equidigital number, since it uses as much as digits as its factorization.
23048145 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 56926 (or 56917 counting only the distinct ones).
The product of its (nonzero) digits is 3840, while the sum is 27.
The square root of 23048145 is about 4800.8483625293. The cubic root of 23048145 is about 284.5849915383.
The spelling of 23048145 in words is "twenty-three million, forty-eight thousand, one hundred forty-five".
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