Base | Representation |
---|---|
bin | 11001100011101… |
… | …00110011011010 |
3 | 112221102000221201 |
4 | 30301310303122 |
5 | 414340403210 |
6 | 33135024414 |
7 | 5212160461 |
oct | 1461646332 |
9 | 487360851 |
10 | 214387930 |
11 | 10001a909 |
12 | 5b96b10a |
13 | 35554183 |
14 | 206899d8 |
15 | 13c4c53a |
hex | cc74cda |
214387930 has 8 divisors (see below), whose sum is σ = 385898292. Its totient is φ = 85755168.
The previous prime is 214387913. The next prime is 214387931. The reversal of 214387930 is 39783412.
It can be written as a sum of positive squares in 2 ways, for example, as 193126609 + 21261321 = 13897^2 + 4611^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a self number, because there is not a number n which added to its sum of digits gives 214387930.
It is not an unprimeable number, because it can be changed into a prime (214387931) 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, 10719387 + ... + 10719406.
Almost surely, 2214387930 is an apocalyptic number.
214387930 is a deficient number, since it is larger than the sum of its proper divisors (171510362).
214387930 is a wasteful number, since it uses less digits than its factorization.
214387930 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 21438800.
The product of its (nonzero) digits is 36288, while the sum is 37.
The square root of 214387930 is about 14641.9920092862. The cubic root of 214387930 is about 598.5036137420.
The spelling of 214387930 in words is "two hundred fourteen million, three hundred eighty-seven thousand, nine hundred thirty".
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