Base | Representation |
---|---|
bin | 11001011100010… |
… | …01010001100111 |
3 | 112212121000121020 |
4 | 30232021101213 |
5 | 414114020312 |
6 | 33102222223 |
7 | 5201032044 |
oct | 1456112147 |
9 | 485530536 |
10 | 213423207 |
11 | aa521018 |
12 | 5b584973 |
13 | 352a702a |
14 | 204b81cb |
15 | 13b0b78c |
hex | cb89467 |
213423207 has 8 divisors (see below), whose sum is σ = 288811776. Its totient is φ = 140158392.
The previous prime is 213423167. The next prime is 213423229. The reversal of 213423207 is 702324312.
213423207 is digitally balanced in base 2, 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.
It is not a de Polignac number, because 213423207 - 212 = 213419111 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (213423247) 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, 530703 + ... + 531104.
It is an arithmetic number, because the mean of its divisors is an integer number (36101472).
Almost surely, 2213423207 is an apocalyptic number.
213423207 is a deficient number, since it is larger than the sum of its proper divisors (75388569).
213423207 is a wasteful number, since it uses less digits than its factorization.
213423207 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1061877.
The product of its (nonzero) digits is 2016, while the sum is 24.
The square root of 213423207 is about 14609.0111575014. The cubic root of 213423207 is about 597.6045294849.
Adding to 213423207 its reverse (702324312), we get a palindrome (915747519).
The spelling of 213423207 in words is "two hundred thirteen million, four hundred twenty-three thousand, two hundred seven".
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