Base | Representation |
---|---|
bin | 10111001100110000… |
… | …01110010010100001 |
3 | 1012011000100210201110 |
4 | 23212120032102201 |
5 | 201001442404012 |
6 | 5415522453533 |
7 | 620435062245 |
oct | 134630162241 |
9 | 35130323643 |
10 | 12455044257 |
11 | 5311603107 |
12 | 24b72042a9 |
13 | 1236509496 |
14 | 862230425 |
15 | 4cd6a873c |
hex | 2e660e4a1 |
12455044257 has 8 divisors (see below), whose sum is σ = 16610275584. Its totient is φ = 8301587888.
The previous prime is 12455044253. The next prime is 12455044267. The reversal of 12455044257 is 75244055421.
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 12455044257 - 22 = 12455044253 is a prime.
It is not an unprimeable number, because it can be changed into a prime (12455044253) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 427278 + ... + 455495.
It is an arithmetic number, because the mean of its divisors is an integer number (2076284448).
Almost surely, 212455044257 is an apocalyptic number.
It is an amenable number.
12455044257 is a deficient number, since it is larger than the sum of its proper divisors (4155231327).
12455044257 is an equidigital number, since it uses as much as digits as its factorization.
12455044257 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 887479.
The product of its (nonzero) digits is 224000, while the sum is 39.
Adding to 12455044257 its reverse (75244055421), we get a palindrome (87699099678).
The spelling of 12455044257 in words is "twelve billion, four hundred fifty-five million, forty-four thousand, two hundred fifty-seven".
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