Base | Representation |
---|---|
bin | 10010101111111011… |
… | …001101010111101001 |
3 | 1220221222210020121110 |
4 | 102233323031113221 |
5 | 312212114400431 |
6 | 13125341500533 |
7 | 1311606050505 |
oct | 225773152751 |
9 | 56858706543 |
10 | 20131403241 |
11 | 85a071a244 |
12 | 3a99b71749 |
13 | 1b8a995031 |
14 | d8d92d305 |
15 | 7cc575346 |
hex | 4afecd5e9 |
20131403241 has 32 divisors (see below), whose sum is σ = 29134909440. Its totient is φ = 12324222144.
The previous prime is 20131403239. The next prime is 20131403249. The reversal of 20131403241 is 14230413102.
It is not a de Polignac number, because 20131403241 - 21 = 20131403239 is a prime.
It is not an unprimeable number, because it can be changed into a prime (20131403249) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 210600 + ... + 290886.
It is an arithmetic number, because the mean of its divisors is an integer number (910465920).
Almost surely, 220131403241 is an apocalyptic number.
It is an amenable number.
20131403241 is a deficient number, since it is larger than the sum of its proper divisors (9003506199).
20131403241 is a wasteful number, since it uses less digits than its factorization.
20131403241 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 80445.
The product of its (nonzero) digits is 576, while the sum is 21.
Adding to 20131403241 its reverse (14230413102), we get a palindrome (34361816343).
The spelling of 20131403241 in words is "twenty billion, one hundred thirty-one million, four hundred three thousand, two hundred forty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.076 sec. • engine limits •