Base | Representation |
---|---|
bin | 100111000000101… |
… | …1011010011000111 |
3 | 10101020002221001020 |
4 | 1032001123103013 |
5 | 10140100344212 |
6 | 333520202223 |
7 | 44303201136 |
oct | 11601332307 |
9 | 3336087036 |
10 | 1308996807 |
11 | 611992748 |
12 | 306469373 |
13 | 17b268031 |
14 | c5bc391d |
15 | 79dbad8c |
hex | 4e05b4c7 |
1308996807 has 8 divisors (see below), whose sum is σ = 1745535984. Its totient is φ = 872561088.
The previous prime is 1308996779. The next prime is 1308996847. The reversal of 1308996807 is 7086998031.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 1308996807 - 27 = 1308996679 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 1308996807.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1308996847) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11283 + ... + 52395.
It is an arithmetic number, because the mean of its divisors is an integer number (218191998).
Almost surely, 21308996807 is an apocalyptic number.
1308996807 is a deficient number, since it is larger than the sum of its proper divisors (436539177).
1308996807 is a wasteful number, since it uses less digits than its factorization.
1308996807 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 51729.
The product of its (nonzero) digits is 653184, while the sum is 51.
The square root of 1308996807 is about 36180.0609037630. The cubic root of 1308996807 is about 1093.9048026791.
The spelling of 1308996807 in words is "one billion, three hundred eight million, nine hundred ninety-six thousand, eight hundred seven".
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