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131320303 = 476014649
BaseRepresentation
bin1111101001111…
…00100111101111
3100011002202120221
413310330213233
5232104222203
621010352211
73153130012
oct764744757
9304082527
10131320303
1168143984
1237b8b667
132128b72a
1413625379
15b7deabd
hex7d3c9ef

131320303 has 8 divisors (see below), whose sum is σ = 134366400. Its totient is φ = 128284800.

The previous prime is 131320297. The next prime is 131320327. The reversal of 131320303 is 303023131.

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 131320303 - 217 = 131189231 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 (131320403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25923 + ... + 30571.

It is an arithmetic number, because the mean of its divisors is an integer number (16795800).

Almost surely, 2131320303 is an apocalyptic number.

131320303 is a deficient number, since it is larger than the sum of its proper divisors (3046097).

131320303 is an equidigital number, since it uses as much as digits as its factorization.

131320303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5297.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 131320303 is about 11459.5071010930. The cubic root of 131320303 is about 508.2888996248.

Adding to 131320303 its reverse (303023131), we get a palindrome (434343434).

The spelling of 131320303 in words is "one hundred thirty-one million, three hundred twenty thousand, three hundred three".

Divisors: 1 47 601 4649 28247 218503 2794049 131320303