Base | Representation |
---|---|
bin | 1111101010110… |
… | …10101001100101 |
3 | 100011100000022102 |
4 | 13311122221211 |
5 | 232122141201 |
6 | 21013141445 |
7 | 3154151423 |
oct | 765325145 |
9 | 304300272 |
10 | 131443301 |
11 | 68218330 |
12 | 3802a885 |
13 | 21302702 |
14 | 13658113 |
15 | b81626b |
hex | 7d5aa65 |
131443301 has 8 divisors (see below), whose sum is σ = 143537664. Its totient is φ = 119373120.
The previous prime is 131443271. The next prime is 131443307. The reversal of 131443301 is 103344131.
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 131443301 - 26 = 131443237 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131443307) 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, 6461 + ... + 17453.
It is an arithmetic number, because the mean of its divisors is an integer number (17942208).
Almost surely, 2131443301 is an apocalyptic number.
131443301 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
131443301 is a deficient number, since it is larger than the sum of its proper divisors (12094363).
131443301 is a wasteful number, since it uses less digits than its factorization.
131443301 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12091.
The product of its (nonzero) digits is 432, while the sum is 20.
The square root of 131443301 is about 11464.8724807562. The cubic root of 131443301 is about 508.4475422920.
Adding to 131443301 its reverse (103344131), we get a palindrome (234787432).
The spelling of 131443301 in words is "one hundred thirty-one million, four hundred forty-three thousand, three hundred one".
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