Base | Representation |
---|---|
bin | 1100010101110110000… |
… | …0001111101011100111 |
3 | 202021021012001020110111 |
4 | 3011131200033223213 |
5 | 11433210131201211 |
6 | 241222430033451 |
7 | 21214051244605 |
oct | 3053540175347 |
9 | 667235036414 |
10 | 212022131431 |
11 | 81a10a69510 |
12 | 35111948887 |
13 | 16cbbc32306 |
14 | a394a20875 |
15 | 57adb17421 |
hex | 315d80fae7 |
212022131431 has 8 divisors (see below), whose sum is σ = 243470390400. Its totient is φ = 182602792440.
The previous prime is 212022131359. The next prime is 212022131521. The reversal of 212022131431 is 134131220212.
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 212022131431 - 213 = 212022123239 is a prime.
It is a super-3 number, since 3×2120221314313 (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (212022131731) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 507229771 + ... + 507230188.
It is an arithmetic number, because the mean of its divisors is an integer number (30433798800).
Almost surely, 2212022131431 is an apocalyptic number.
212022131431 is a deficient number, since it is larger than the sum of its proper divisors (31448258969).
212022131431 is a wasteful number, since it uses less digits than its factorization.
212022131431 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1014459989.
The product of its (nonzero) digits is 576, while the sum is 22.
Adding to 212022131431 its reverse (134131220212), we get a palindrome (346153351643).
The spelling of 212022131431 in words is "two hundred twelve billion, twenty-two million, one hundred thirty-one thousand, four hundred thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.073 sec. • engine limits •