Base | Representation |
---|---|
bin | 11000000000011001… |
… | …10111111111010001 |
3 | 1020021012120022020120 |
4 | 30000030313333101 |
5 | 202343344330240 |
6 | 5530520300453 |
7 | 634245355305 |
oct | 140014677721 |
9 | 36235508216 |
10 | 12888276945 |
11 | 5514107255 |
12 | 25b8311729 |
13 | 12a51b529b |
14 | 8a39a5d05 |
15 | 506733ad0 |
hex | 300337fd1 |
12888276945 has 8 divisors (see below), whose sum is σ = 20621243136. Its totient is φ = 6873747696.
The previous prime is 12888276943. The next prime is 12888276959. The reversal of 12888276945 is 54967288821.
12888276945 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 not a de Polignac number, because 12888276945 - 21 = 12888276943 is a prime.
It is a super-2 number, since 2×128882769452 (a number of 21 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (12888276943) 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, 429609217 + ... + 429609246.
It is an arithmetic number, because the mean of its divisors is an integer number (2577655392).
Almost surely, 212888276945 is an apocalyptic number.
12888276945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
12888276945 is a deficient number, since it is larger than the sum of its proper divisors (7732966191).
12888276945 is an equidigital number, since it uses as much as digits as its factorization.
12888276945 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 859218471.
The product of its digits is 15482880, while the sum is 60.
The spelling of 12888276945 in words is "twelve billion, eight hundred eighty-eight million, two hundred seventy-six thousand, nine hundred forty-five".
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