Base | Representation |
---|---|
bin | 111001101000… |
… | …0000010101101 |
3 | 2002211221102221 |
4 | 1303100002231 |
5 | 30213243034 |
6 | 2555315341 |
7 | 514541263 |
oct | 163200255 |
9 | 62757387 |
10 | 30212269 |
11 | 16065a1a |
12 | a14bb51 |
13 | 634a7a9 |
14 | 4026433 |
15 | 29bbbb4 |
hex | 1cd00ad |
30212269 has 8 divisors (see below), whose sum is σ = 30618432. Its totient is φ = 29808480.
The previous prime is 30212251. The next prime is 30212311. The reversal of 30212269 is 96221203.
It is a happy number.
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 30212269 - 211 = 30210221 is a prime.
It is a super-2 number, since 2×302122692 = 1825562396256722, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30212209) 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 7 ways as a sum of consecutive naturals, for example, 53382 + ... + 53944.
It is an arithmetic number, because the mean of its divisors is an integer number (3827304).
Almost surely, 230212269 is an apocalyptic number.
It is an amenable number.
30212269 is a deficient number, since it is larger than the sum of its proper divisors (406163).
30212269 is a wasteful number, since it uses less digits than its factorization.
30212269 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1187.
The product of its (nonzero) digits is 1296, while the sum is 25.
The square root of 30212269 is about 5496.5688388303. The cubic root of 30212269 is about 311.4543834843.
The spelling of 30212269 in words is "thirty million, two hundred twelve thousand, two hundred sixty-nine".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.083 sec. • engine limits •