| Base | Representation |
|---|---|
| bin | 100101101110111… |
| … | …0111101010000000 |
| 3 | 10021020102121222010 |
| 4 | 1023131313222000 |
| 5 | 10043111340334 |
| 6 | 325345212520 |
| 7 | 43242565605 |
| oct | 11335675200 |
| 9 | 3236377863 |
| 10 | 1266121344 |
| 11 | 59a768784 |
| 12 | 2b4031140 |
| 13 | 172405737 |
| 14 | c02226ac |
| 15 | 7624c0e9 |
| hex | 4b777a80 |
1266121344 has 192 divisors, whose sum is σ = 3597678720. Its totient is φ = 394260480.
The previous prime is 1266121343. The next prime is 1266121357. The reversal of 1266121344 is 4431216621.
1266121344 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.
It is a tau number, because it is divible by the number of its divisors (192).
It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.
It is a nude number because it is divisible by every one of its digits.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1266121343) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17344092 + ... + 17344164.
It is an arithmetic number, because the mean of its divisors is an integer number (18737910).
Almost surely, 21266121344 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1266121344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1798839360).
1266121344 is an abundant number, since it is smaller than the sum of its proper divisors (2331557376).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1266121344 is an equidigital number, since it uses as much as digits as its factorization.
1266121344 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 199 (or 156 counting only the distinct ones).
The product of its digits is 6912, while the sum is 30.
The square root of 1266121344 is about 35582.5988932793. The cubic root of 1266121344 is about 1081.8285620983.
Adding to 1266121344 its reverse (4431216621), we get a palindrome (5697337965).
The spelling of 1266121344 in words is "one billion, two hundred sixty-six million, one hundred twenty-one thousand, three hundred forty-four".
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