Base | Representation |
---|---|
bin | 10010101111111110… |
… | …010111001111110011 |
3 | 1220222001100020220000 |
4 | 102233332113033303 |
5 | 312212322331011 |
6 | 13125411321043 |
7 | 1311616063326 |
oct | 225776271763 |
9 | 56861306800 |
10 | 20132230131 |
11 | 85a1134522 |
12 | 3a9a2b0183 |
13 | 1b8abc4510 |
14 | d8daa67bd |
15 | 7cc68a356 |
hex | 4aff973f3 |
20132230131 has 40 divisors (see below), whose sum is σ = 32684781360. Its totient is φ = 12275333568.
The previous prime is 20132230109. The next prime is 20132230169. The reversal of 20132230131 is 13103223102.
It is not a de Polignac number, because 20132230131 - 27 = 20132230003 is a prime.
It is a super-2 number, since 2×201322301312 (a number of 21 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (20132230631) by changing a digit.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 27076 + ... + 202478.
It is an arithmetic number, because the mean of its divisors is an integer number (817119534).
Almost surely, 220132230131 is an apocalyptic number.
20132230131 is a deficient number, since it is larger than the sum of its proper divisors (12552551229).
20132230131 is a wasteful number, since it uses less digits than its factorization.
20132230131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 175537 (or 175528 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
Adding to 20132230131 its reverse (13103223102), we get a palindrome (33235453233).
The spelling of 20132230131 in words is "twenty billion, one hundred thirty-two million, two hundred thirty thousand, one hundred thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.080 sec. • engine limits •