Base | Representation |
---|---|
bin | 111001011101… |
… | …0010110010010 |
3 | 2002200102112212 |
4 | 1302322112102 |
5 | 30202422120 |
6 | 2553352122 |
7 | 514021232 |
oct | 162722622 |
9 | 62612485 |
10 | 30123410 |
11 | 16005189 |
12 | a108642 |
13 | 6319205 |
14 | 4001cc2 |
15 | 29a06c5 |
hex | 1cba592 |
30123410 has 16 divisors (see below), whose sum is σ = 54351000. Its totient is φ = 12020736.
The previous prime is 30123409. The next prime is 30123437. The reversal of 30123410 is 1432103.
It can be written as a sum of positive squares in 4 ways, for example, as 27050401 + 3073009 = 5201^2 + 1753^2 .
It is an alternating number because its digits alternate between odd and even.
It is an unprimeable number.
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, 1136 + ... + 7844.
Almost surely, 230123410 is an apocalyptic number.
30123410 is a deficient number, since it is larger than the sum of its proper divisors (24227590).
30123410 is a wasteful number, since it uses less digits than its factorization.
30123410 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7165.
The product of its (nonzero) digits is 72, while the sum is 14.
The square root of 30123410 is about 5488.4797530828. The cubic root of 30123410 is about 311.1487383156.
Adding to 30123410 its reverse (1432103), we get a palindrome (31555513).
The spelling of 30123410 in words is "thirty million, one hundred twenty-three thousand, four hundred ten".
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