Base | Representation |
---|---|
bin | 11001011100111… |
… | …11101011101001 |
3 | 112212202200111102 |
4 | 30232133223221 |
5 | 414124434420 |
6 | 33104211145 |
7 | 5201563445 |
oct | 1456375351 |
9 | 485680442 |
10 | 213514985 |
11 | aa583a72 |
12 | 5b609ab5 |
13 | 35309a38 |
14 | 204dd825 |
15 | 13b28a75 |
hex | cb9fae9 |
213514985 has 8 divisors (see below), whose sum is σ = 271289736. Its totient is φ = 160764160.
The previous prime is 213514967. The next prime is 213514993. The reversal of 213514985 is 589415312.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 45657049 + 167857936 = 6757^2 + 12956^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 213514985 - 214 = 213498601 is a prime.
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1255886 + ... + 1256055.
It is an arithmetic number, because the mean of its divisors is an integer number (33911217).
Almost surely, 2213514985 is an apocalyptic number.
It is an amenable number.
213514985 is a deficient number, since it is larger than the sum of its proper divisors (57774751).
213514985 is a wasteful number, since it uses less digits than its factorization.
213514985 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2511963.
The product of its digits is 43200, while the sum is 38.
The square root of 213514985 is about 14612.1519633489. The cubic root of 213514985 is about 597.6901794778.
The spelling of 213514985 in words is "two hundred thirteen million, five hundred fourteen thousand, nine hundred eighty-five".
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