Base | Representation |
---|---|
bin | 11001011111101… |
… | …11101000000111 |
3 | 112220102222121222 |
4 | 30233313220013 |
5 | 414223001312 |
6 | 33120030555 |
7 | 5204623610 |
oct | 1457675007 |
9 | 486388558 |
10 | 213875207 |
11 | aa7aa677 |
12 | 5b76245b |
13 | 354049a0 |
14 | 20594c07 |
15 | 13b9a672 |
hex | cbf7a07 |
213875207 has 16 divisors (see below), whose sum is σ = 270349632. Its totient is φ = 164643840.
The previous prime is 213875161. The next prime is 213875257. The reversal of 213875207 is 702578312.
It is a cyclic number.
It is not a de Polignac number, because 213875207 - 28 = 213874951 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (213875257) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28394 + ... + 35127.
It is an arithmetic number, because the mean of its divisors is an integer number (16896852).
Almost surely, 2213875207 is an apocalyptic number.
213875207 is a deficient number, since it is larger than the sum of its proper divisors (56474425).
213875207 is a wasteful number, since it uses less digits than its factorization.
213875207 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 63578.
The product of its (nonzero) digits is 23520, while the sum is 35.
The square root of 213875207 is about 14624.4728793895. The cubic root of 213875207 is about 598.0261124752.
The spelling of 213875207 in words is "two hundred thirteen million, eight hundred seventy-five thousand, two hundred seven".
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