Search a number
-
+
131310301 = 308942509
BaseRepresentation
bin1111101001110…
…10001011011101
3100011002020212111
413310322023131
5232103412201
621010234021
73153055603
oct764721335
9304066774
10131310301
1168137411
1237b85911
1321287005
1413621873
15b7dbb51
hex7d3a2dd

131310301 has 4 divisors (see below), whose sum is σ = 131355900. Its totient is φ = 131264704.

The previous prime is 131310269. The next prime is 131310307. The reversal of 131310301 is 103013131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 123187801 + 8122500 = 11099^2 + 2850^2 .

It is a cyclic number.

It is not a de Polignac number, because 131310301 - 25 = 131310269 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 (131310307) 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, 18166 + ... + 24343.

It is an arithmetic number, because the mean of its divisors is an integer number (32838975).

Almost surely, 2131310301 is an apocalyptic number.

It is an amenable number.

131310301 is a deficient number, since it is larger than the sum of its proper divisors (45599).

131310301 is an equidigital number, since it uses as much as digits as its factorization.

131310301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45598.

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 131310301 is about 11459.0706865784. The cubic root of 131310301 is about 508.2759947031.

Adding to 131310301 its reverse (103013131), we get a palindrome (234323432).

The spelling of 131310301 in words is "one hundred thirty-one million, three hundred ten thousand, three hundred one".

Divisors: 1 3089 42509 131310301