Base | Representation |
---|---|
bin | 111111110100000… |
… | …1001100011001001 |
3 | 12112020002211011011 |
4 | 1333220021203021 |
5 | 13341123400210 |
6 | 552250003521 |
7 | 104030110603 |
oct | 17750114311 |
9 | 5466084134 |
10 | 2141231305 |
11 | 9a973a854 |
12 | 4b91165a1 |
13 | 2817c5c95 |
14 | 164540173 |
15 | c7eadd8a |
hex | 7fa098c9 |
2141231305 has 8 divisors (see below), whose sum is σ = 2572379712. Its totient is φ = 1711050288.
The previous prime is 2141231297. The next prime is 2141231317. The reversal of 2141231305 is 5031321412.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 2141231305 - 23 = 2141231297 is a prime.
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236967 + ... + 245836.
It is an arithmetic number, because the mean of its divisors is an integer number (321547464).
Almost surely, 22141231305 is an apocalyptic number.
It is an amenable number.
2141231305 is a deficient number, since it is larger than the sum of its proper divisors (431148407).
2141231305 is an equidigital number, since it uses as much as digits as its factorization.
2141231305 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 483695.
The product of its (nonzero) digits is 720, while the sum is 22.
The square root of 2141231305 is about 46273.4406004135. The cubic root of 2141231305 is about 1288.9058496648.
Adding to 2141231305 its reverse (5031321412), we get a palindrome (7172552717).
The spelling of 2141231305 in words is "two billion, one hundred forty-one million, two hundred thirty-one thousand, three hundred five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.068 sec. • engine limits •