Base | Representation |
---|---|
bin | 11001011001010… |
… | …00000100010011 |
3 | 112211211210102102 |
4 | 30230220010103 |
5 | 414013300133 |
6 | 33045511015 |
7 | 5164453160 |
oct | 1454500423 |
9 | 484753372 |
10 | 213025043 |
11 | aa279960 |
12 | 5b41246b |
13 | 35197a2a |
14 | 20413067 |
15 | 13a7d7e8 |
hex | cb28113 |
213025043 has 16 divisors (see below), whose sum is σ = 265959936. Its totient is φ = 165762240.
The previous prime is 213025031. The next prime is 213025067. The reversal of 213025043 is 340520312.
It is a happy number.
It is not a de Polignac number, because 213025043 - 212 = 213020947 is a prime.
It is not an unprimeable number, because it can be changed into a prime (213025013) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71930 + ... + 74832.
It is an arithmetic number, because the mean of its divisors is an integer number (16622496).
Almost surely, 2213025043 is an apocalyptic number.
213025043 is a deficient number, since it is larger than the sum of its proper divisors (52934893).
213025043 is a wasteful number, since it uses less digits than its factorization.
213025043 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3874.
The product of its (nonzero) digits is 720, while the sum is 20.
The square root of 213025043 is about 14595.3774531528. The cubic root of 213025043 is about 597.2326662478.
Adding to 213025043 its reverse (340520312), we get a palindrome (553545355).
The spelling of 213025043 in words is "two hundred thirteen million, twenty-five thousand, forty-three".
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