Base | Representation |
---|---|
bin | 1111100111101… |
… | …10100001111010 |
3 | 100010120011202212 |
4 | 13303312201322 |
5 | 232021030320 |
6 | 21000255122 |
7 | 3150523010 |
oct | 763664172 |
9 | 303504685 |
10 | 131033210 |
11 | 67a68210 |
12 | 37a714a2 |
13 | 211bab59 |
14 | 1358c8b0 |
15 | b7849c5 |
hex | 7cf687a |
131033210 has 64 divisors (see below), whose sum is σ = 296110080. Its totient is φ = 40557120.
The previous prime is 131033209. The next prime is 131033213. The reversal of 131033210 is 12330131.
It is a Harshad number since it is a multiple of its sum of digits (14).
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (131033213) 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 31 ways as a sum of consecutive naturals, for example, 128081 + ... + 129099.
It is an arithmetic number, because the mean of its divisors is an integer number (4626720).
Almost surely, 2131033210 is an apocalyptic number.
131033210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
131033210 is an abundant number, since it is smaller than the sum of its proper divisors (165076870).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131033210 is a wasteful number, since it uses less digits than its factorization.
131033210 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1211.
The product of its (nonzero) digits is 54, while the sum is 14.
The square root of 131033210 is about 11446.9738359096. The cubic root of 131033210 is about 507.9182215891.
Adding to 131033210 its reverse (12330131), we get a palindrome (143363341).
The spelling of 131033210 in words is "one hundred thirty-one million, thirty-three thousand, two hundred ten".
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