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131303241 = 334863083
BaseRepresentation
bin1111101001110…
…00011101001001
3100011001220012000
413310320131021
5232103200431
621010141213
73153026166
oct764703511
9304056160
10131303241
1168132083
1237b81809
1321283a34
141361d06d
15b7d99e6
hex7d38749

131303241 has 8 divisors (see below), whose sum is σ = 194523360. Its totient is φ = 87535476.

The previous prime is 131303239. The next prime is 131303273. The reversal of 131303241 is 142303131.

It is not a de Polignac number, because 131303241 - 21 = 131303239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131303201) 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, 2431515 + ... + 2431568.

It is an arithmetic number, because the mean of its divisors is an integer number (24315420).

Almost surely, 2131303241 is an apocalyptic number.

It is an amenable number.

131303241 is a deficient number, since it is larger than the sum of its proper divisors (63220119).

131303241 is an equidigital number, since it uses as much as digits as its factorization.

131303241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4863092 (or 4863086 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 131303241 is about 11458.7626295338. The cubic root of 131303241 is about 508.2668852557.

Adding to 131303241 its reverse (142303131), we get a palindrome (273606372).

The spelling of 131303241 in words is "one hundred thirty-one million, three hundred three thousand, two hundred forty-one".

Divisors: 1 3 9 27 4863083 14589249 43767747 131303241