Base | Representation |
---|---|
bin | 111010110100… |
… | …0100101001101 |
3 | 2011000200111200 |
4 | 1311220211031 |
5 | 30343241234 |
6 | 3020540113 |
7 | 523052664 |
oct | 165504515 |
9 | 64020450 |
10 | 30837069 |
11 | 1645238a |
12 | a3b1639 |
13 | 6508cb3 |
14 | 4149ddb |
15 | 2a91d99 |
hex | 1d6894d |
30837069 has 12 divisors (see below), whose sum is σ = 44839392. Its totient is φ = 20421000.
The previous prime is 30837061. The next prime is 30837071. The reversal of 30837069 is 96073803.
It is not a de Polignac number, because 30837069 - 23 = 30837061 is a prime.
It is a super-2 number, since 2×308370692 = 1901849649021522, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30837061) 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 11 ways as a sum of consecutive naturals, for example, 9987 + ... + 12704.
It is an arithmetic number, because the mean of its divisors is an integer number (3736616).
Almost surely, 230837069 is an apocalyptic number.
It is an amenable number.
30837069 is a deficient number, since it is larger than the sum of its proper divisors (14002323).
30837069 is a wasteful number, since it uses less digits than its factorization.
30837069 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 22848 (or 22845 counting only the distinct ones).
The product of its (nonzero) digits is 27216, while the sum is 36.
The square root of 30837069 is about 5553.1134510291. The cubic root of 30837069 is about 313.5867452239.
The spelling of 30837069 in words is "thirty million, eight hundred thirty-seven thousand, sixty-nine".
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