Base | Representation |
---|---|
bin | 111001101001… |
… | …0110010010101 |
3 | 2002212111212020 |
4 | 1303102302111 |
5 | 30214123014 |
6 | 2555443353 |
7 | 514616121 |
oct | 163226225 |
9 | 62774766 |
10 | 30223509 |
11 | 16073408 |
12 | a156559 |
13 | 6352944 |
14 | 402a581 |
15 | 29c01a9 |
hex | 1cd2c95 |
30223509 has 8 divisors (see below), whose sum is σ = 42419040. Its totient is φ = 19088496.
The previous prime is 30223483. The next prime is 30223513. The reversal of 30223509 is 90532203.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30223509 - 25 = 30223477 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30223549) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265062 + ... + 265175.
It is an arithmetic number, because the mean of its divisors is an integer number (5302380).
Almost surely, 230223509 is an apocalyptic number.
It is an amenable number.
30223509 is a deficient number, since it is larger than the sum of its proper divisors (12195531).
30223509 is a wasteful number, since it uses less digits than its factorization.
30223509 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 530259.
The product of its (nonzero) digits is 1620, while the sum is 24.
The square root of 30223509 is about 5497.5911997892. The cubic root of 30223509 is about 311.4930025988.
The spelling of 30223509 in words is "thirty million, two hundred twenty-three thousand, five hundred nine".
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