Base | Representation |
---|---|
bin | 11111010101011011000101 |
3 | 120110022210010 |
4 | 133111123011 |
5 | 4100323323 |
6 | 452020433 |
7 | 126551100 |
oct | 37253305 |
9 | 16408703 |
10 | 8214213 |
11 | 4700507 |
12 | 2901719 |
13 | 1917aa7 |
14 | 113b737 |
15 | ac3c93 |
hex | 7d56c5 |
8214213 has 48 divisors (see below), whose sum is σ = 14281920. Its totient is φ = 4161024.
The previous prime is 8214211. The next prime is 8214223. The reversal of 8214213 is 3124128.
It is not a de Polignac number, because 8214213 - 21 = 8214211 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a self number, because there is not a number n which added to its sum of digits gives 8214213.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (8214211) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 47395 + ... + 47567.
It is an arithmetic number, because the mean of its divisors is an integer number (297540).
Almost surely, 28214213 is an apocalyptic number.
It is an amenable number.
8214213 is a deficient number, since it is larger than the sum of its proper divisors (6067707).
8214213 is a wasteful number, since it uses less digits than its factorization.
8214213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 226 (or 219 counting only the distinct ones).
The product of its digits is 384, while the sum is 21.
The square root of 8214213 is about 2866.0448356577. The cubic root of 8214213 is about 201.7694081435.
The spelling of 8214213 in words is "eight million, two hundred fourteen thousand, two hundred thirteen".
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