Base | Representation |
---|---|
bin | 11000000110000… |
… | …01110000010101 |
3 | 112002022202210211 |
4 | 30003001300111 |
5 | 403220321323 |
6 | 32020045421 |
7 | 5002664521 |
oct | 1403016025 |
9 | 462282724 |
10 | 202120213 |
11 | a41009a9 |
12 | 57833871 |
13 | 32b4a379 |
14 | 1cbb4d81 |
15 | 12b2770d |
hex | c0c1c15 |
202120213 has 8 divisors (see below), whose sum is σ = 203245920. Its totient is φ = 200998320.
The previous prime is 202120187. The next prime is 202120249. The reversal of 202120213 is 312021202.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 202120213 - 25 = 202120181 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 202120193 and 202120202.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (202120273) 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, 214323 + ... + 215263.
It is an arithmetic number, because the mean of its divisors is an integer number (25405740).
Almost surely, 2202120213 is an apocalyptic number.
It is an amenable number.
202120213 is a deficient number, since it is larger than the sum of its proper divisors (1125707).
202120213 is an equidigital number, since it uses as much as digits as its factorization.
202120213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1907.
The product of its (nonzero) digits is 48, while the sum is 13.
The square root of 202120213 is about 14216.8988531255. The cubic root of 202120213 is about 586.8628014074.
Adding to 202120213 its reverse (312021202), we get a palindrome (514141415).
The spelling of 202120213 in words is "two hundred two million, one hundred twenty thousand, two hundred thirteen".
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