Base | Representation |
---|---|
bin | 111001011011… |
… | …0011110011101 |
3 | 2002122121210102 |
4 | 1302312132131 |
5 | 30201420144 |
6 | 2553150445 |
7 | 513624053 |
oct | 162663635 |
9 | 62577712 |
10 | 30107549 |
11 | 15aa427a |
12 | a0bb425 |
13 | 6311c24 |
14 | 3dda1d3 |
15 | 299ab4e |
hex | 1cb679d |
30107549 has 2 divisors, whose sum is σ = 30107550. Its totient is φ = 30107548.
The previous prime is 30107507. The next prime is 30107557. The reversal of 30107549 is 94570103.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 30052324 + 55225 = 5482^2 + 235^2 .
It is a cyclic number.
It is not a de Polignac number, because 30107549 - 216 = 30042013 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30107569) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15053774 + 15053775.
It is an arithmetic number, because the mean of its divisors is an integer number (15053775).
Almost surely, 230107549 is an apocalyptic number.
It is an amenable number.
30107549 is a deficient number, since it is larger than the sum of its proper divisors (1).
30107549 is an equidigital number, since it uses as much as digits as its factorization.
30107549 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 3780, while the sum is 29.
The square root of 30107549 is about 5487.0346271916. The cubic root of 30107549 is about 311.0941185967.
The spelling of 30107549 in words is "thirty million, one hundred seven thousand, five hundred forty-nine".
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