Base | Representation |
---|---|
bin | 10111111111101010… |
… | …01110011100000000 |
3 | 1020020202220100010021 |
4 | 23333311032130000 |
5 | 202340302434230 |
6 | 5530135343224 |
7 | 634141565041 |
oct | 137765163400 |
9 | 36222810107 |
10 | 12882077440 |
11 | 55106624a1 |
12 | 25b6221b14 |
13 | 12a3b2453b |
14 | 8a2c308c8 |
15 | 505e0bc7a |
hex | 2ffd4e700 |
12882077440 has 36 divisors (see below), whose sum is σ = 30856604184. Its totient is φ = 5152830464.
The previous prime is 12882077431. The next prime is 12882077447. The reversal of 12882077440 is 4477028821.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12882077447) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5030782 + ... + 5033341.
It is an arithmetic number, because the mean of its divisors is an integer number (857127894).
Almost surely, 212882077440 is an apocalyptic number.
12882077440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12882077440 is an abundant number, since it is smaller than the sum of its proper divisors (17974526744).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12882077440 is an equidigital number, since it uses as much as digits as its factorization.
12882077440 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10064144 (or 10064130 counting only the distinct ones).
The product of its (nonzero) digits is 200704, while the sum is 43.
The spelling of 12882077440 in words is "twelve billion, eight hundred eighty-two million, seventy-seven thousand, four hundred forty".
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