Base | Representation |
---|---|
bin | 111010111010… |
… | …0000110101001 |
3 | 2011010002020200 |
4 | 1311310012221 |
5 | 30401244030 |
6 | 3021542413 |
7 | 523340406 |
oct | 165640651 |
9 | 64102220 |
10 | 30884265 |
11 | 16484895 |
12 | a414a09 |
13 | 6524619 |
14 | 415d2ad |
15 | 2aa0d60 |
hex | 1d741a9 |
30884265 has 12 divisors (see below), whose sum is σ = 53532804. Its totient is φ = 16471584.
The previous prime is 30884263. The next prime is 30884267. The reversal of 30884265 is 56248803.
It is an interprime number because it is at equal distance from previous prime (30884263) and next prime (30884267).
It can be written as a sum of positive squares in 2 ways, for example, as 11778624 + 19105641 = 3432^2 + 4371^2 .
It is not a de Polignac number, because 30884265 - 21 = 30884263 is a prime.
It is not an unprimeable number, because it can be changed into a prime (30884263) 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, 343114 + ... + 343203.
It is an arithmetic number, because the mean of its divisors is an integer number (4461067).
Almost surely, 230884265 is an apocalyptic number.
It is an amenable number.
30884265 is a deficient number, since it is larger than the sum of its proper divisors (22648539).
30884265 is a wasteful number, since it uses less digits than its factorization.
30884265 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 686328 (or 686325 counting only the distinct ones).
The product of its (nonzero) digits is 46080, while the sum is 36.
The square root of 30884265 is about 5557.3613343025. The cubic root of 30884265 is about 313.7466447264.
The spelling of 30884265 in words is "thirty million, eight hundred eighty-four thousand, two hundred sixty-five".
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