| Base | Representation |
|---|---|
| bin | 100110111011001… |
| … | …1101110010101010 |
| 3 | 10101000200221112000 |
| 4 | 1031312131302222 |
| 5 | 10133331422214 |
| 6 | 333334431430 |
| 7 | 44236603020 |
| oct | 11566356252 |
| 9 | 3330627460 |
| 10 | 1306123434 |
| 11 | 6102aa960 |
| 12 | 305502576 |
| 13 | 17a7a0205 |
| 14 | c5676710 |
| 15 | 799ee809 |
| hex | 4dd9dcaa |
1306123434 has 128 divisors (see below), whose sum is σ = 3735797760. Its totient is φ = 328276800.
The previous prime is 1306123433. The next prime is 1306123453. The reversal of 1306123434 is 4343216031.
1306123434 is a `hidden beast` number, since 1 + 3 + 0 + 612 + 3 + 43 + 4 = 666.
It is a super-3 number, since 3×13061234343 (a number of 28 digits) contains 333 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 1306123398 and 1306123407.
It is not an unprimeable number, because it can be changed into a prime (1306123433) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 123832 + ... + 133964.
It is an arithmetic number, because the mean of its divisors is an integer number (29185920).
Almost surely, 21306123434 is an apocalyptic number.
1306123434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 1306123434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1867898880).
1306123434 is an abundant number, since it is smaller than the sum of its proper divisors (2429674326).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1306123434 is a wasteful number, since it uses less digits than its factorization.
1306123434 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10193 (or 10187 counting only the distinct ones).
The product of its (nonzero) digits is 5184, while the sum is 27.
The square root of 1306123434 is about 36140.3297439301. The cubic root of 1306123434 is about 1093.1038078030.
Adding to 1306123434 its reverse (4343216031), we get a palindrome (5649339465).
The spelling of 1306123434 in words is "one billion, three hundred six million, one hundred twenty-three thousand, four hundred thirty-four".
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