Base | Representation |
---|---|
bin | 11001010010100… |
… | …01110000001110 |
3 | 112210012012021020 |
4 | 30221101300032 |
5 | 413302202324 |
6 | 33015015010 |
7 | 5154135666 |
oct | 1451216016 |
9 | 483165236 |
10 | 212147214 |
11 | a982a384 |
12 | 5b06a466 |
13 | 34c4b2c6 |
14 | 202651a6 |
15 | 13958679 |
hex | ca51c0e |
212147214 has 8 divisors (see below), whose sum is σ = 424294440. Its totient is φ = 70715736.
The previous prime is 212147213. The next prime is 212147249. The reversal of 212147214 is 412741212.
212147214 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
212147214 is an admirable number.
It is an alternating number because its digits alternate between even and odd.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (212147213) 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, 17678929 + ... + 17678940.
It is an arithmetic number, because the mean of its divisors is an integer number (53036805).
Almost surely, 2212147214 is an apocalyptic number.
212147214 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
212147214 is a wasteful number, since it uses less digits than its factorization.
212147214 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 35357874.
The product of its digits is 896, while the sum is 24.
The square root of 212147214 is about 14565.2742507651. The cubic root of 212147214 is about 596.4111823338.
Adding to 212147214 its reverse (412741212), we get a palindrome (624888426).
The spelling of 212147214 in words is "two hundred twelve million, one hundred forty-seven thousand, two hundred fourteen".
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