Base | Representation |
---|---|
bin | 1000000101001110… |
… | …0010111010001101 |
3 | 12121012002011012101 |
4 | 2001103202322031 |
5 | 13420330301324 |
6 | 555133235101 |
7 | 104521315261 |
oct | 20123427215 |
9 | 5535064171 |
10 | 2169384589 |
11 | a13619829 |
12 | 506632a91 |
13 | 2875a2528 |
14 | 16818c0a1 |
15 | ca6c0944 |
hex | 814e2e8d |
2169384589 has 4 divisors (see below), whose sum is σ = 2169765760. Its totient is φ = 2169003420.
The previous prime is 2169384577. The next prime is 2169384617. The reversal of 2169384589 is 9854839612.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 2169384589 - 27 = 2169384461 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 (2169384389) 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, 181917 + ... + 193474.
It is an arithmetic number, because the mean of its divisors is an integer number (542441440).
Almost surely, 22169384589 is an apocalyptic number.
It is an amenable number.
2169384589 is a deficient number, since it is larger than the sum of its proper divisors (381171).
2169384589 is an equidigital number, since it uses as much as digits as its factorization.
2169384589 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 381170.
The product of its digits is 3732480, while the sum is 55.
The square root of 2169384589 is about 46576.6528316495. The cubic root of 2169384589 is about 1294.5301911828.
The spelling of 2169384589 in words is "two billion, one hundred sixty-nine million, three hundred eighty-four thousand, five hundred eighty-nine".
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