Base | Representation |
---|---|
bin | 1111100111101… |
… | …11001010001101 |
3 | 100010120022022101 |
4 | 13303313022031 |
5 | 232021121124 |
6 | 21000315101 |
7 | 3150533353 |
oct | 763671215 |
9 | 303508271 |
10 | 131035789 |
11 | 67a6a145 |
12 | 37a72a91 |
13 | 211bc091 |
14 | 1358d7d3 |
15 | b785644 |
hex | 7cf728d |
131035789 has 2 divisors, whose sum is σ = 131035790. Its totient is φ = 131035788.
The previous prime is 131035787. The next prime is 131035831. The reversal of 131035789 is 987530131.
It is a happy number.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 121220100 + 9815689 = 11010^2 + 3133^2 .
It is a cyclic number.
It is not a de Polignac number, because 131035789 - 21 = 131035787 is a prime.
Together with 131035787, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (131035783) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65517894 + 65517895.
It is an arithmetic number, because the mean of its divisors is an integer number (65517895).
Almost surely, 2131035789 is an apocalyptic number.
It is an amenable number.
131035789 is a deficient number, since it is larger than the sum of its proper divisors (1).
131035789 is an equidigital number, since it uses as much as digits as its factorization.
131035789 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 22680, while the sum is 37.
The square root of 131035789 is about 11447.0864852154. The cubic root of 131035789 is about 507.9215538550.
The spelling of 131035789 in words is "one hundred thirty-one million, thirty-five thousand, seven hundred eighty-nine".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.079 sec. • engine limits •