Base | Representation |
---|---|
bin | 11001011001110… |
… | …10111010001011 |
3 | 112211222201021210 |
4 | 30230322322023 |
5 | 414023232334 |
6 | 33051304203 |
7 | 5165224161 |
oct | 1454727213 |
9 | 484881253 |
10 | 213102219 |
11 | aa321940 |
12 | 5b44b063 |
13 | 351c3bb5 |
14 | 20433231 |
15 | 13a965e9 |
hex | cb3ae8b |
213102219 has 16 divisors (see below), whose sum is σ = 315051264. Its totient is φ = 127034400.
The previous prime is 213102209. The next prime is 213102247. The reversal of 213102219 is 912201312.
It is not a de Polignac number, because 213102219 - 28 = 213101963 is a prime.
It is a super-2 number, since 2×2131022192 = 90825111485447922, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 213102195 and 213102204.
It is not an unprimeable number, because it can be changed into a prime (213102209) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50919 + ... + 54944.
It is an arithmetic number, because the mean of its divisors is an integer number (19690704).
Almost surely, 2213102219 is an apocalyptic number.
213102219 is a deficient number, since it is larger than the sum of its proper divisors (101949045).
213102219 is a wasteful number, since it uses less digits than its factorization.
213102219 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 105938.
The product of its (nonzero) digits is 216, while the sum is 21.
The square root of 213102219 is about 14598.0210645142. The cubic root of 213102219 is about 597.3047805598.
The spelling of 213102219 in words is "two hundred thirteen million, one hundred two thousand, two hundred nineteen".
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