Base | Representation |
---|---|
bin | 11111000001001100001011 |
3 | 120022010002201 |
4 | 133001030023 |
5 | 4040200324 |
6 | 450141031 |
7 | 126054346 |
oct | 37011413 |
9 | 16263081 |
10 | 8131339 |
11 | 4654217 |
12 | 2881777 |
13 | 18b9158 |
14 | 111945d |
15 | aa9444 |
hex | 7c130b |
8131339 has 8 divisors (see below), whose sum is σ = 8460000. Its totient is φ = 7805952.
The previous prime is 8131337. The next prime is 8131349. The reversal of 8131339 is 9331318.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 8131339 - 21 = 8131337 is a prime.
It is a super-2 number, since 2×81313392 = 132237347865842, which contains 22 as substring.
It is a Duffinian number.
It is a nialpdrome in base 15.
It is not an unprimeable number, because it can be changed into a prime (8131337) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5067 + ... + 6475.
It is an arithmetic number, because the mean of its divisors is an integer number (1057500).
Almost surely, 28131339 is an apocalyptic number.
8131339 is a deficient number, since it is larger than the sum of its proper divisors (328661).
8131339 is a wasteful number, since it uses less digits than its factorization.
8131339 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1637.
The product of its digits is 1944, while the sum is 28.
The square root of 8131339 is about 2851.5502801108. The cubic root of 8131339 is about 201.0885561452.
The spelling of 8131339 in words is "eight million, one hundred thirty-one thousand, three hundred thirty-nine".
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