Base | Representation |
---|---|
bin | 111010101000… |
… | …1000001011001 |
3 | 2010211210010121 |
4 | 1311101001121 |
5 | 30332144234 |
6 | 3014513241 |
7 | 522201436 |
oct | 165210131 |
9 | 63753117 |
10 | 30740569 |
11 | 16396932 |
12 | a365821 |
13 | 64a40b2 |
14 | 4122b8d |
15 | 2a734b4 |
hex | 1d51059 |
30740569 has 2 divisors, whose sum is σ = 30740570. Its totient is φ = 30740568.
The previous prime is 30740533. The next prime is 30740579. The reversal of 30740569 is 96504703.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 29300569 + 1440000 = 5413^2 + 1200^2 .
It is a cyclic number.
It is not a de Polignac number, because 30740569 - 217 = 30609497 is a prime.
It is a super-2 number, since 2×307405692 = 1889965164887522, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (30740509) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15370284 + 15370285.
It is an arithmetic number, because the mean of its divisors is an integer number (15370285).
Almost surely, 230740569 is an apocalyptic number.
It is an amenable number.
30740569 is a deficient number, since it is larger than the sum of its proper divisors (1).
30740569 is an equidigital number, since it uses as much as digits as its factorization.
30740569 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 22680, while the sum is 34.
The square root of 30740569 is about 5544.4178233607. The cubic root of 30740569 is about 313.2592957961.
The spelling of 30740569 in words is "thirty million, seven hundred forty thousand, five hundred sixty-nine".
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