Base | Representation |
---|---|
bin | 11001100100100… |
… | …10111001101101 |
3 | 112221122022001202 |
4 | 30302102321231 |
5 | 414403324323 |
6 | 33141415245 |
7 | 5213213060 |
oct | 1462227155 |
9 | 487568052 |
10 | 214511213 |
11 | 1000a44a4 |
12 | 5ba0a525 |
13 | 35598317 |
14 | 206bc8d7 |
15 | 13c73d28 |
hex | cc92e6d |
214511213 has 4 divisors (see below), whose sum is σ = 245155680. Its totient is φ = 183866748.
The previous prime is 214511207. The next prime is 214511233. The reversal of 214511213 is 312115412.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 214511213 - 28 = 214510957 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (214511203) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15322223 + ... + 15322236.
It is an arithmetic number, because the mean of its divisors is an integer number (61288920).
Almost surely, 2214511213 is an apocalyptic number.
It is an amenable number.
214511213 is a deficient number, since it is larger than the sum of its proper divisors (30644467).
214511213 is an equidigital number, since it uses as much as digits as its factorization.
214511213 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 30644466.
The product of its digits is 240, while the sum is 20.
The square root of 214511213 is about 14646.2013163823. The cubic root of 214511213 is about 598.6183142014.
Adding to 214511213 its reverse (312115412), we get a palindrome (526626625).
The spelling of 214511213 in words is "two hundred fourteen million, five hundred eleven thousand, two hundred thirteen".
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