Base | Representation |
---|---|
bin | 10110100101001010… |
… | …00111100111001001 |
3 | 1011021212100010122111 |
4 | 23102211013213021 |
5 | 144311424133312 |
6 | 5322535222321 |
7 | 606262532542 |
oct | 132245074711 |
9 | 34255303574 |
10 | 12122880457 |
11 | 5161060576 |
12 | 2423b179a1 |
13 | 11b275985c |
14 | 8300874c9 |
15 | 4ae4448a7 |
hex | 2d29479c9 |
12122880457 has 8 divisors (see below), whose sum is σ = 12810090240. Its totient is φ = 11449014720.
The previous prime is 12122880449. The next prime is 12122880461. The reversal of 12122880457 is 75408822121.
12122880457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 12122880457 - 23 = 12122880449 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (12122880467) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3334144 + ... + 3337777.
It is an arithmetic number, because the mean of its divisors is an integer number (1601261280).
Almost surely, 212122880457 is an apocalyptic number.
It is an amenable number.
12122880457 is a deficient number, since it is larger than the sum of its proper divisors (687209783).
12122880457 is an equidigital number, since it uses as much as digits as its factorization.
12122880457 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6672023.
The product of its (nonzero) digits is 71680, while the sum is 40.
The spelling of 12122880457 in words is "twelve billion, one hundred twenty-two million, eight hundred eighty thousand, four hundred fifty-seven".
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