Base | Representation |
---|---|
bin | 1111100111110… |
… | …01001000001101 |
3 | 100010120201101001 |
4 | 13303321020031 |
5 | 232021400403 |
6 | 21000420301 |
7 | 3150566023 |
oct | 763711015 |
9 | 303521331 |
10 | 131043853 |
11 | 67a75206 |
12 | 37a77691 |
13 | 211c2955 |
14 | 13592713 |
15 | b787c1d |
hex | 7cf920d |
131043853 has 4 divisors (see below), whose sum is σ = 131093820. Its totient is φ = 130993888.
The previous prime is 131043841. The next prime is 131043859. The reversal of 131043853 is 358340131.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 85710564 + 45333289 = 9258^2 + 6733^2 .
It is a cyclic number.
It is not a de Polignac number, because 131043853 - 213 = 131035661 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131043859) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20818 + ... + 26371.
It is an arithmetic number, because the mean of its divisors is an integer number (32773455).
Almost surely, 2131043853 is an apocalyptic number.
It is an amenable number.
131043853 is a deficient number, since it is larger than the sum of its proper divisors (49967).
131043853 is an equidigital number, since it uses as much as digits as its factorization.
131043853 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 49966.
The product of its (nonzero) digits is 4320, while the sum is 28.
The square root of 131043853 is about 11447.4387091611. The cubic root of 131043853 is about 507.9319728797.
Adding to 131043853 its reverse (358340131), we get a palindrome (489383984).
The spelling of 131043853 in words is "one hundred thirty-one million, forty-three thousand, eight hundred fifty-three".
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