Base | Representation |
---|---|
bin | 1111101100101… |
… | …01010100111001 |
3 | 100011210012222220 |
4 | 13312111110321 |
5 | 232202334031 |
6 | 21022234253 |
7 | 3156202215 |
oct | 766252471 |
9 | 304705886 |
10 | 131683641 |
11 | 68371961 |
12 | 38125989 |
13 | 21387c1b |
14 | 136bb945 |
15 | b862596 |
hex | 7d95539 |
131683641 has 8 divisors (see below), whose sum is σ = 178891200. Its totient is φ = 86132592.
The previous prime is 131683639. The next prime is 131683681. The reversal of 131683641 is 146386131.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 131683641 - 21 = 131683639 is a prime.
It is not an unprimeable number, because it can be changed into a prime (131683631) 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, 413941 + ... + 414258.
It is an arithmetic number, because the mean of its divisors is an integer number (22361400).
Almost surely, 2131683641 is an apocalyptic number.
It is an amenable number.
131683641 is a deficient number, since it is larger than the sum of its proper divisors (47207559).
131683641 is an equidigital number, since it uses as much as digits as its factorization.
131683641 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 828255.
The product of its digits is 10368, while the sum is 33.
The square root of 131683641 is about 11475.3492757301. The cubic root of 131683641 is about 508.7572471284.
The spelling of 131683641 in words is "one hundred thirty-one million, six hundred eighty-three thousand, six hundred forty-one".
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