| Base | Representation |
|---|---|
| bin | 100101101111100… |
| … | …0000110111010000 |
| 3 | 10021020222212021220 |
| 4 | 1023133000313100 |
| 5 | 10043200434300 |
| 6 | 325355445040 |
| 7 | 43245255042 |
| oct | 11337006720 |
| 9 | 3236885256 |
| 10 | 1266421200 |
| 11 | 59a952aa0 |
| 12 | 2b4156780 |
| 13 | 1724ac075 |
| 14 | c029da92 |
| 15 | 762aada0 |
| hex | 4b7c0dd0 |
1266421200 has 240 divisors, whose sum is σ = 4546929216. Its totient is φ = 298598400.
The previous prime is 1266421199. The next prime is 1266421201. The reversal of 1266421200 is 21246621.
It is an interprime number because it is at equal distance from previous prime (1266421199) and next prime (1266421201).
It is a tau number, because it is divible by the number of its divisors (240).
It is a Harshad number since it is a multiple of its sum of digits (24).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1266421201) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 487104 + ... + 489696.
Almost surely, 21266421200 is an apocalyptic number.
1266421200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1266421200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2273464608).
1266421200 is an abundant number, since it is smaller than the sum of its proper divisors (3280508016).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1266421200 is a wasteful number, since it uses less digits than its factorization.
1266421200 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2662 (or 2651 counting only the distinct ones).
The product of its (nonzero) digits is 1152, while the sum is 24.
The square root of 1266421200 is about 35586.8121640588. The cubic root of 1266421200 is about 1081.9139586473.
Adding to 1266421200 its reverse (21246621), we get a palindrome (1287667821).
It can be divided in two parts, 1266421 and 200, that added together give a palindrome (1266621).
The spelling of 1266421200 in words is "one billion, two hundred sixty-six million, four hundred twenty-one thousand, two hundred".
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