Base | Representation |
---|---|
bin | 1111101001010… |
… | …10100001000011 |
3 | 100010221222212102 |
4 | 13310222201003 |
5 | 232044334042 |
6 | 21005021015 |
7 | 3152400554 |
oct | 764524103 |
9 | 303858772 |
10 | 131246147 |
11 | 680a319a |
12 | 37b5476b |
13 | 21263a56 |
14 | 1360632b |
15 | b7c7b32 |
hex | 7d2a843 |
131246147 has 8 divisors (see below), whose sum is σ = 132028416. Its totient is φ = 130466952.
The previous prime is 131246123. The next prime is 131246153. The reversal of 131246147 is 741642131.
It is a happy number.
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 131246147 - 216 = 131180611 is a prime.
It is a super-2 number, since 2×1312461472 = 34451102204691218, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (131246117) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215918 + ... + 216524.
It is an arithmetic number, because the mean of its divisors is an integer number (16503552).
Almost surely, 2131246147 is an apocalyptic number.
131246147 is a deficient number, since it is larger than the sum of its proper divisors (782269).
131246147 is an equidigital number, since it uses as much as digits as its factorization.
131246147 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1537.
The product of its digits is 4032, while the sum is 29.
The square root of 131246147 is about 11456.2710774492. The cubic root of 131246147 is about 508.1932054379.
Adding to 131246147 its reverse (741642131), we get a palindrome (872888278).
The spelling of 131246147 in words is "one hundred thirty-one million, two hundred forty-six thousand, one hundred forty-seven".
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