Base | Representation |
---|---|
bin | 1111101001101… |
… | …00110010001011 |
3 | 100011001010120001 |
4 | 13310310302023 |
5 | 232102210303 |
6 | 21005543431 |
7 | 3152634304 |
oct | 764646213 |
9 | 304033501 |
10 | 131288203 |
11 | 68121852 |
12 | 37b74b77 |
13 | 21279c37 |
14 | 136177ab |
15 | b7d531d |
hex | 7d34c8b |
131288203 has 8 divisors (see below), whose sum is σ = 132088320. Its totient is φ = 130491240.
The previous prime is 131288189. The next prime is 131288207. The reversal of 131288203 is 302882131.
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 131288203 - 29 = 131287691 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (131288207) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180226 + ... + 180952.
It is an arithmetic number, because the mean of its divisors is an integer number (16511040).
Almost surely, 2131288203 is an apocalyptic number.
131288203 is a deficient number, since it is larger than the sum of its proper divisors (800117).
131288203 is an equidigital number, since it uses as much as digits as its factorization.
131288203 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1577.
The product of its (nonzero) digits is 2304, while the sum is 28.
The square root of 131288203 is about 11458.1064316928. The cubic root of 131288203 is about 508.2474807862.
The spelling of 131288203 in words is "one hundred thirty-one million, two hundred eighty-eight thousand, two hundred three".
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