Base | Representation |
---|---|
bin | 11001100011000… |
… | …10010100010111 |
3 | 112221021012002110 |
4 | 30301202110113 |
5 | 414330442330 |
6 | 33133242103 |
7 | 5211423645 |
oct | 1461422427 |
9 | 487235073 |
10 | 214312215 |
11 | aaa78a37 |
12 | 5b933333 |
13 | 35528880 |
14 | 2066a195 |
15 | 13c34db0 |
hex | cc62517 |
214312215 has 64 divisors (see below), whose sum is σ = 384975360. Its totient is φ = 101122560.
The previous prime is 214312211. The next prime is 214312223. The reversal of 214312215 is 512213412.
It is not a de Polignac number, because 214312215 - 22 = 214312211 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 214312191 and 214312200.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (214312211) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 511276 + ... + 511694.
It is an arithmetic number, because the mean of its divisors is an integer number (6015240).
Almost surely, 2214312215 is an apocalyptic number.
214312215 is a deficient number, since it is larger than the sum of its proper divisors (170663145).
214312215 is a wasteful number, since it uses less digits than its factorization.
214312215 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 544.
The product of its digits is 480, while the sum is 21.
The square root of 214312215 is about 14639.4062379592. The cubic root of 214312215 is about 598.4331479640.
Adding to 214312215 its reverse (512213412), we get a palindrome (726525627).
The spelling of 214312215 in words is "two hundred fourteen million, three hundred twelve thousand, two hundred fifteen".
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