Base | Representation |
---|---|
bin | 11001001011011… |
… | …01111100000111 |
3 | 112201102210020222 |
4 | 30211231330013 |
5 | 413032322322 |
6 | 32543014555 |
7 | 5143201340 |
oct | 1445557407 |
9 | 481383228 |
10 | 211214087 |
11 | a92522a7 |
12 | 5a89a45b |
13 | 349b2666 |
14 | 200a10c7 |
15 | 13821e42 |
hex | c96df07 |
211214087 has 8 divisors (see below), whose sum is σ = 242391072. Its totient is φ = 180288000.
The previous prime is 211214077. The next prime is 211214111. The reversal of 211214087 is 780412112.
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 211214087 - 218 = 210951943 is a prime.
It is a super-2 number, since 2×2112140872 = 89222781094487138, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (211214027) 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, 60914 + ... + 64287.
It is an arithmetic number, because the mean of its divisors is an integer number (30298884).
Almost surely, 2211214087 is an apocalyptic number.
211214087 is a deficient number, since it is larger than the sum of its proper divisors (31176985).
211214087 is a wasteful number, since it uses less digits than its factorization.
211214087 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 125449.
The product of its (nonzero) digits is 896, while the sum is 26.
The square root of 211214087 is about 14533.2063564789. The cubic root of 211214087 is about 595.5354612936.
Adding to 211214087 its reverse (780412112), we get a palindrome (991626199).
The spelling of 211214087 in words is "two hundred eleven million, two hundred fourteen thousand, eighty-seven".
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