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131104441 = 1310084957
BaseRepresentation
bin1111101000001…
…11111010111001
3100010200210111001
413310013322321
5232030320231
621002005001
73151240456
oct764077271
9303623431
10131104441
1168006786
1237aa6761
13212143c0
14135aa82d
15b79ab61
hex7d07eb9

131104441 has 4 divisors (see below), whose sum is σ = 141189412. Its totient is φ = 121019472.

The previous prime is 131104403. The next prime is 131104451. The reversal of 131104441 is 144401131.

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 51538041 + 79566400 = 7179^2 + 8920^2 .

It is a cyclic number.

It is not a de Polignac number, because 131104441 - 211 = 131102393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131104451) 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, 5042466 + ... + 5042491.

It is an arithmetic number, because the mean of its divisors is an integer number (35297353).

Almost surely, 2131104441 is an apocalyptic number.

It is an amenable number.

131104441 is a deficient number, since it is larger than the sum of its proper divisors (10084971).

131104441 is a wasteful number, since it uses less digits than its factorization.

131104441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10084970.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 131104441 is about 11450.0847595116. The cubic root of 131104441 is about 508.0102414390.

Adding to 131104441 its reverse (144401131), we get a palindrome (275505572).

The spelling of 131104441 in words is "one hundred thirty-one million, one hundred four thousand, four hundred forty-one".

Divisors: 1 13 10084957 131104441