Base | Representation |
---|---|
bin | 111001011110… |
… | …0011111001001 |
3 | 2002200212120021 |
4 | 1302330133021 |
5 | 30203212134 |
6 | 2553500441 |
7 | 514055614 |
oct | 162743711 |
9 | 62625507 |
10 | 30132169 |
11 | 16010821 |
12 | a111721 |
13 | 63201b2 |
14 | 400517b |
15 | 29a30b4 |
hex | 1cbc7c9 |
30132169 has 2 divisors, whose sum is σ = 30132170. Its totient is φ = 30132168.
The previous prime is 30132161. The next prime is 30132199. The reversal of 30132169 is 96123103.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 15116544 + 15015625 = 3888^2 + 3875^2 .
It is a cyclic number.
It is not a de Polignac number, because 30132169 - 23 = 30132161 is a prime.
It is a super-2 number, since 2×301321692 = 1815895217289122, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (30132161) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15066084 + 15066085.
It is an arithmetic number, because the mean of its divisors is an integer number (15066085).
Almost surely, 230132169 is an apocalyptic number.
It is an amenable number.
30132169 is a deficient number, since it is larger than the sum of its proper divisors (1).
30132169 is an equidigital number, since it uses as much as digits as its factorization.
30132169 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 972, while the sum is 25.
The square root of 30132169 is about 5489.2776391799. The cubic root of 30132169 is about 311.1788930213.
It can be divided in two parts, 301 and 32169, that multiplied together give a palindrome (9682869).
The spelling of 30132169 in words is "thirty million, one hundred thirty-two thousand, one hundred sixty-nine".
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