Base | Representation |
---|---|
bin | 100111000000010… |
… | …1010010101000111 |
3 | 10101012201201220111 |
4 | 1032000222111013 |
5 | 10140022434411 |
6 | 333512013451 |
7 | 44301404311 |
oct | 11600522507 |
9 | 3335651814 |
10 | 1308796231 |
11 | 611865a86 |
12 | 306391287 |
13 | 17b1c7952 |
14 | c5b707b1 |
15 | 79d7b721 |
hex | 4e02a547 |
1308796231 has 4 divisors (see below), whose sum is σ = 1312060464. Its totient is φ = 1305532000.
The previous prime is 1308796217. The next prime is 1308796249. The reversal of 1308796231 is 1326978031.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 1308796231 - 211 = 1308794183 is a prime.
It is a super-2 number, since 2×13087962312 = 3425895148559610722, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1308796261) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1631515 + ... + 1632316.
It is an arithmetic number, because the mean of its divisors is an integer number (328015116).
Almost surely, 21308796231 is an apocalyptic number.
1308796231 is a deficient number, since it is larger than the sum of its proper divisors (3264233).
1308796231 is an equidigital number, since it uses as much as digits as its factorization.
1308796231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3264232.
The product of its (nonzero) digits is 54432, while the sum is 40.
The square root of 1308796231 is about 36177.2888840499. The cubic root of 1308796231 is about 1093.8489272544.
The spelling of 1308796231 in words is "one billion, three hundred eight million, seven hundred ninety-six thousand, two hundred thirty-one".
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