| Base | Representation |
|---|---|
| bin | 100110111111001… |
| … | …0101111010110100 |
| 3 | 10101011120212001000 |
| 4 | 1031332111322310 |
| 5 | 10134344011330 |
| 6 | 333451003300 |
| 7 | 44263263114 |
| oct | 11576257264 |
| 9 | 3334525030 |
| 10 | 1308188340 |
| 11 | 611490298 |
| 12 | 306139530 |
| 13 | 17b044054 |
| 14 | c5a53044 |
| 15 | 79cab560 |
| hex | 4df95eb4 |
1308188340 has 96 divisors (see below), whose sum is σ = 4099858560. Its totient is φ = 346284288.
The previous prime is 1308188311. The next prime is 1308188351. The reversal of 1308188340 is 438818031.
1308188340 is a `hidden beast` number, since 1 + 308 + 1 + 8 + 8 + 340 = 666.
It is a super-2 number, since 2×13081883402 = 3422713465823911200, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a junction number, because it is equal to n+sod(n) for n = 1308188295 and 1308188304.
It is a congruent number.
It is an unprimeable number.
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 31 ways as a sum of consecutive naturals, for example, 65139 + ... + 82821.
It is an arithmetic number, because the mean of its divisors is an integer number (42706860).
Almost surely, 21308188340 is an apocalyptic number.
1308188340 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 1308188340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2049929280).
1308188340 is an abundant number, since it is smaller than the sum of its proper divisors (2791670220).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1308188340 is a wasteful number, since it uses less digits than its factorization.
1308188340 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17838 (or 17830 counting only the distinct ones).
The product of its (nonzero) digits is 18432, while the sum is 36.
The square root of 1308188340 is about 36168.8863527756. The cubic root of 1308188340 is about 1093.6795492472.
The spelling of 1308188340 in words is "one billion, three hundred eight million, one hundred eighty-eight thousand, three hundred forty".
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