Base | Representation |
---|---|
bin | 111001011110… |
… | …0111011010001 |
3 | 2002200222000221 |
4 | 1302330323101 |
5 | 30203241334 |
6 | 2553513041 |
7 | 514064065 |
oct | 162747321 |
9 | 62628027 |
10 | 30133969 |
11 | 16012108 |
12 | a112781 |
13 | 6320c68 |
14 | 4005aa5 |
15 | 29a38b4 |
hex | 1cbced1 |
30133969 has 2 divisors, whose sum is σ = 30133970. Its totient is φ = 30133968.
The previous prime is 30133967. The next prime is 30133993. The reversal of 30133969 is 96933103.
It is a happy number.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 24373969 + 5760000 = 4937^2 + 2400^2 .
It is a cyclic number.
It is not a de Polignac number, because 30133969 - 21 = 30133967 is a prime.
It is a super-2 number, since 2×301339692 = 1816112175385922, which contains 22 as substring.
Together with 30133967, it forms a pair of twin primes.
It is not a weakly prime, because it can be changed into another prime (30133963) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15066984 + 15066985.
It is an arithmetic number, because the mean of its divisors is an integer number (15066985).
Almost surely, 230133969 is an apocalyptic number.
It is an amenable number.
30133969 is a deficient number, since it is larger than the sum of its proper divisors (1).
30133969 is an equidigital number, since it uses as much as digits as its factorization.
30133969 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 13122, while the sum is 34.
The square root of 30133969 is about 5489.4415927305. The cubic root of 30133969 is about 311.1850891773.
The spelling of 30133969 in words is "thirty million, one hundred thirty-three thousand, nine hundred sixty-nine".
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