Base | Representation |
---|---|
bin | 1111101101000… |
… | …11001001101111 |
3 | 100011220002200022 |
4 | 13312203021233 |
5 | 232211142041 |
6 | 21023352355 |
7 | 3156526265 |
oct | 766431157 |
9 | 304802608 |
10 | 131740271 |
11 | 68400463 |
12 | 381526bb |
13 | 213a7930 |
14 | 136d4435 |
15 | b87424b |
hex | 7da326f |
131740271 has 4 divisors (see below), whose sum is σ = 141874152. Its totient is φ = 121606392.
The previous prime is 131740249. The next prime is 131740277. The reversal of 131740271 is 172047131.
It is a happy number.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 131740271 - 26 = 131740207 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 131740271.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131740277) 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 3 ways as a sum of consecutive naturals, for example, 5066921 + ... + 5066946.
It is an arithmetic number, because the mean of its divisors is an integer number (35468538).
Almost surely, 2131740271 is an apocalyptic number.
131740271 is a deficient number, since it is larger than the sum of its proper divisors (10133881).
131740271 is a wasteful number, since it uses less digits than its factorization.
131740271 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10133880.
The product of its (nonzero) digits is 1176, while the sum is 26.
The square root of 131740271 is about 11477.8164735284. The cubic root of 131740271 is about 508.8301663198.
The spelling of 131740271 in words is "one hundred thirty-one million, seven hundred forty thousand, two hundred seventy-one".
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