Base | Representation |
---|---|
bin | 1100010111010100111… |
… | …0011111100100101001 |
3 | 202022021220221201101110 |
4 | 3011311032133210221 |
5 | 11440014023143423 |
6 | 241330124340533 |
7 | 21226653215541 |
oct | 3056516374451 |
9 | 668256851343 |
10 | 212420131113 |
11 | 820a5698573 |
12 | 352030a4749 |
13 | 17053523298 |
14 | a3d1824321 |
15 | 57d3a33193 |
hex | 317539f929 |
212420131113 has 16 divisors (see below), whose sum is σ = 284837051456. Its totient is φ = 140809052160.
The previous prime is 212420131019. The next prime is 212420131201. The reversal of 212420131113 is 311131024212.
It is not a de Polignac number, because 212420131113 - 217 = 212420000041 is a prime.
It is a super-2 number, since 2×2124201311132 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 212420131113.
It is not an unprimeable number, because it can be changed into a prime (212420133113) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1076898 + ... + 1258788.
It is an arithmetic number, because the mean of its divisors is an integer number (17802315716).
Almost surely, 2212420131113 is an apocalyptic number.
It is an amenable number.
212420131113 is a deficient number, since it is larger than the sum of its proper divisors (72416920343).
212420131113 is a wasteful number, since it uses less digits than its factorization.
212420131113 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 184104.
The product of its (nonzero) digits is 288, while the sum is 21.
Adding to 212420131113 its reverse (311131024212), we get a palindrome (523551155325).
The spelling of 212420131113 in words is "two hundred twelve billion, four hundred twenty million, one hundred thirty-one thousand, one hundred thirteen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.090 sec. • engine limits •