Base | Representation |
---|---|
bin | 101111001110… |
… | …100101100001 |
3 | 212021222212112 |
4 | 233032211201 |
5 | 11132134023 |
6 | 1121205105 |
7 | 210142535 |
oct | 57164541 |
9 | 25258775 |
10 | 12380513 |
11 | 6a96732 |
12 | 4190795 |
13 | 2746262 |
14 | 1903bc5 |
15 | 1148478 |
hex | bce961 |
12380513 has 2 divisors, whose sum is σ = 12380514. Its totient is φ = 12380512.
The previous prime is 12380507. The next prime is 12380519. The reversal of 12380513 is 31508321.
It is a balanced prime because it is at equal distance from previous prime (12380507) and next prime (12380519).
It can be written as a sum of positive squares in only one way, i.e., 12166144 + 214369 = 3488^2 + 463^2 .
It is a cyclic number.
It is not a de Polignac number, because 12380513 - 26 = 12380449 is a prime.
It is not a weakly prime, because it can be changed into another prime (12380519) 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 as a sum of consecutive naturals, namely, 6190256 + 6190257.
It is an arithmetic number, because the mean of its divisors is an integer number (6190257).
Almost surely, 212380513 is an apocalyptic number.
It is an amenable number.
12380513 is a deficient number, since it is larger than the sum of its proper divisors (1).
12380513 is an equidigital number, since it uses as much as digits as its factorization.
12380513 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 720, while the sum is 23.
The square root of 12380513 is about 3518.5953163159. The cubic root of 12380513 is about 231.3375935031.
Adding to 12380513 its reverse (31508321), we get a palindrome (43888834).
It can be divided in two parts, 123 and 80513, that multiplied together give a palindrome (9903099).
The spelling of 12380513 in words is "twelve million, three hundred eighty thousand, five hundred thirteen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.067 sec. • engine limits •