Base | Representation |
---|---|
bin | 100110100011… |
… | …1000111000101 |
3 | 1102000222200120 |
4 | 1031013013011 |
5 | 20133323323 |
6 | 2001132153 |
7 | 333550365 |
oct | 115070705 |
9 | 42028616 |
10 | 20214213 |
11 | 10457268 |
12 | 692a059 |
13 | 4259a96 |
14 | 29829a5 |
15 | 1b945e3 |
hex | 13471c5 |
20214213 has 12 divisors (see below), whose sum is σ = 27226080. Its totient is φ = 13340512.
The previous prime is 20214203. The next prime is 20214223. The reversal of 20214213 is 31241202.
It is an interprime number because it is at equal distance from previous prime (20214203) and next prime (20214223).
It is not a de Polignac number, because 20214213 - 26 = 20214149 is a prime.
It is a super-2 number, since 2×202142132 = 817228814418738, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 20214192 and 20214201.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20214203) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56128 + ... + 56486.
It is an arithmetic number, because the mean of its divisors is an integer number (2268840).
Almost surely, 220214213 is an apocalyptic number.
It is an amenable number.
20214213 is a deficient number, since it is larger than the sum of its proper divisors (7011867).
20214213 is an equidigital number, since it uses as much as digits as its factorization.
20214213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 636 (or 499 counting only the distinct ones).
The product of its (nonzero) digits is 96, while the sum is 15.
The square root of 20214213 is about 4496.0219083096. The cubic root of 20214213 is about 272.4074280849.
Adding to 20214213 its reverse (31241202), we get a palindrome (51455415).
The spelling of 20214213 in words is "twenty million, two hundred fourteen thousand, two hundred thirteen".
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