Base | Representation |
---|---|
bin | 111000011100111100… |
… | …1101111111001101101 |
3 | 102120220202121201002220 |
4 | 1300321321233321231 |
5 | 3441240003232023 |
6 | 131405330505553 |
7 | 11521130310654 |
oct | 1607171577155 |
9 | 376822551086 |
10 | 121230524013 |
11 | 4746051a015 |
12 | 1b5b3a352b9 |
13 | b5801081a1 |
14 | 5c2094019b |
15 | 32480203e3 |
hex | 1c39e6fe6d |
121230524013 has 32 divisors (see below), whose sum is σ = 172023264000. Its totient is φ = 75796471296.
The previous prime is 121230524011. The next prime is 121230524021. The reversal of 121230524013 is 310425032121.
It is not a de Polignac number, because 121230524013 - 21 = 121230524011 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (121230524011) 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, 1896745 + ... + 1959617.
It is an arithmetic number, because the mean of its divisors is an integer number (5375727000).
Almost surely, 2121230524013 is an apocalyptic number.
It is an amenable number.
121230524013 is a deficient number, since it is larger than the sum of its proper divisors (50792739987).
121230524013 is a wasteful number, since it uses less digits than its factorization.
121230524013 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 63541.
The product of its (nonzero) digits is 1440, while the sum is 24.
Adding to 121230524013 its reverse (310425032121), we get a palindrome (431655556134).
The spelling of 121230524013 in words is "one hundred twenty-one billion, two hundred thirty million, five hundred twenty-four thousand, thirteen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •