Base | Representation |
---|---|
bin | 10101100011011011… |
… | …101100111111001100 |
3 | 2012201212201101201111 |
4 | 111203123230333030 |
5 | 334344104334040 |
6 | 14344243421404 |
7 | 1446335422426 |
oct | 254333547714 |
9 | 65655641644 |
10 | 23143043020 |
11 | 98a670a839 |
12 | 459a684864 |
13 | 224a8c35c6 |
14 | 11978c5816 |
15 | 906b67dea |
hex | 5636ecfcc |
23143043020 has 48 divisors (see below), whose sum is σ = 48941581248. Its totient is φ = 9192407040.
The previous prime is 23143042987. The next prime is 23143043023. The reversal of 23143043020 is 2034034132.
It is a happy number.
It is a junction number, because it is equal to n+sod(n) for n = 23143042982 and 23143043000.
It is not an unprimeable number, because it can be changed into a prime (23143043023) 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, 2222025 + ... + 2232415.
It is an arithmetic number, because the mean of its divisors is an integer number (1019616276).
Almost surely, 223143043020 is an apocalyptic number.
23143043020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
23143043020 is an abundant number, since it is smaller than the sum of its proper divisors (25798538228).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23143043020 is a wasteful number, since it uses less digits than its factorization.
23143043020 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11170 (or 11168 counting only the distinct ones).
The product of its (nonzero) digits is 1728, while the sum is 22.
Adding to 23143043020 its reverse (2034034132), we get a palindrome (25177077152).
The spelling of 23143043020 in words is "twenty-three billion, one hundred forty-three million, forty-three thousand, twenty".
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