Base | Representation |
---|---|
bin | 1111101000011… |
… | …00101101111011 |
3 | 100010201210102211 |
4 | 13310030231323 |
5 | 232031432331 |
6 | 21002235551 |
7 | 3151351660 |
oct | 764145573 |
9 | 303653384 |
10 | 131124091 |
11 | 6801a51a |
12 | 37ab5bb7 |
13 | 21220327 |
14 | 135b3a67 |
15 | b7a18b1 |
hex | 7d0cb7b |
131124091 has 8 divisors (see below), whose sum is σ = 150205664. Its totient is φ = 112129920.
The previous prime is 131124089. The next prime is 131124101. The reversal of 131124091 is 190421131.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 131124091 - 21 = 131124089 is a prime.
It is not an unprimeable number, because it can be changed into a prime (131124011) 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 in 7 ways as a sum of consecutive naturals, for example, 18600 + ... + 24661.
It is an arithmetic number, because the mean of its divisors is an integer number (18775708).
Almost surely, 2131124091 is an apocalyptic number.
131124091 is a deficient number, since it is larger than the sum of its proper divisors (19081573).
131124091 is an equidigital number, since it uses as much as digits as its factorization.
131124091 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 43701.
The product of its (nonzero) digits is 216, while the sum is 22.
The square root of 131124091 is about 11450.9427996126. The cubic root of 131124091 is about 508.0356204485.
The spelling of 131124091 in words is "one hundred thirty-one million, one hundred twenty-four thousand, ninety-one".
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