| Base | Representation |
|---|---|
| bin | 100101101111000… |
| … | …1110000110110100 |
| 3 | 10021020121022002220 |
| 4 | 1023132032012310 |
| 5 | 10043122311200 |
| 6 | 325351202340 |
| 7 | 43243430652 |
| oct | 11336160664 |
| 9 | 3236538086 |
| 10 | 1266213300 |
| 11 | 59a820880 |
| 12 | 2b40763b0 |
| 13 | 172438551 |
| 14 | c0247dd2 |
| 15 | 762694a0 |
| hex | 4b78e1b4 |
1266213300 has 144 divisors (see below), whose sum is σ = 4014868032. Its totient is φ = 305561600.
The previous prime is 1266213287. The next prime is 1266213307. The reversal of 1266213300 is 33126621.
It is a happy number.
1266213300 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×12662133002 = 3206592242193780000, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1266213307) 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, 847354 + ... + 848846.
It is an arithmetic number, because the mean of its divisors is an integer number (27881028).
Almost surely, 21266213300 is an apocalyptic number.
1266213300 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 1266213300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2007434016).
1266213300 is an abundant number, since it is smaller than the sum of its proper divisors (2748654732).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1266213300 is a wasteful number, since it uses less digits than its factorization.
1266213300 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1778 (or 1771 counting only the distinct ones).
The product of its (nonzero) digits is 1296, while the sum is 24.
The square root of 1266213300 is about 35583.8910182684. The cubic root of 1266213300 is about 1081.8547518522.
Adding to 1266213300 its reverse (33126621), we get a palindrome (1299339921).
It can be divided in two parts, 126621 and 3300, that added together give a palindrome (129921).
The spelling of 1266213300 in words is "one billion, two hundred sixty-six million, two hundred thirteen thousand, three hundred".
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