Search a number
-
+
131450339 = 307428177
BaseRepresentation
bin1111101010111…
…00010111100011
3100011100100222002
413311130113203
5232122402324
621013234215
73154211066
oct765342743
9304310862
10131450339
1168222649
123803296b
1321305987
141365a8dd
15b8183ae
hex7d5c5e3

131450339 has 4 divisors (see below), whose sum is σ = 131878824. Its totient is φ = 131021856.

The previous prime is 131450321. The next prime is 131450357. The reversal of 131450339 is 933054131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 933054131 = 4432106217.

It is an interprime number because it is at equal distance from previous prime (131450321) and next prime (131450357).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-131450339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131450309) 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, 213782 + ... + 214395.

It is an arithmetic number, because the mean of its divisors is an integer number (32969706).

Almost surely, 2131450339 is an apocalyptic number.

131450339 is a deficient number, since it is larger than the sum of its proper divisors (428485).

131450339 is an equidigital number, since it uses as much as digits as its factorization.

131450339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428484.

The product of its (nonzero) digits is 4860, while the sum is 29.

The square root of 131450339 is about 11465.1794142089. The cubic root of 131450339 is about 508.4566169017.

The spelling of 131450339 in words is "one hundred thirty-one million, four hundred fifty thousand, three hundred thirty-nine".

Divisors: 1 307 428177 131450339