Base | Representation |
---|---|
bin | 1000100101100101… |
… | …1011010011011111 |
3 | 12221122112110010212 |
4 | 2021121123103133 |
5 | 14210104102111 |
6 | 1020423123035 |
7 | 111060254351 |
oct | 21131332337 |
9 | 5848473125 |
10 | 2305144031 |
11 | a83214913 |
12 | 543ba347b |
13 | 2a9756668 |
14 | 17c20b0d1 |
15 | d758a98b |
hex | 8965b4df |
2305144031 has 4 divisors (see below), whose sum is σ = 2307834672. Its totient is φ = 2302453392.
The previous prime is 2305144001. The next prime is 2305144063. The reversal of 2305144031 is 1304415032.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 2305144031 - 222 = 2300949727 is a prime.
It is a super-2 number, since 2×23051440312 = 10627378007309857922, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 2305143988 and 2305144006.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2305144001) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1344035 + ... + 1345748.
It is an arithmetic number, because the mean of its divisors is an integer number (576958668).
Almost surely, 22305144031 is an apocalyptic number.
2305144031 is a deficient number, since it is larger than the sum of its proper divisors (2690641).
2305144031 is an equidigital number, since it uses as much as digits as its factorization.
2305144031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2690640.
The product of its (nonzero) digits is 1440, while the sum is 23.
The square root of 2305144031 is about 48011.9155106313. The cubic root of 2305144031 is about 1320.9894691224.
Adding to 2305144031 its reverse (1304415032), we get a palindrome (3609559063).
The spelling of 2305144031 in words is "two billion, three hundred five million, one hundred forty-four thousand, thirty-one".
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