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131441343 = 31123173177
BaseRepresentation
bin1111101010110…
…10001010111111
3100011022220121220
413311122022333
5232122110333
621013124423
73154142625
oct765321277
9304286556
10131441343
1168216910
1238029713
1321301857
1413657515
15b8158b3
hex7d5a2bf

131441343 has 16 divisors (see below), whose sum is σ = 199501056. Its totient is φ = 76197440.

The previous prime is 131441309. The next prime is 131441371. The reversal of 131441343 is 343144131.

It is not a de Polignac number, because 131441343 - 210 = 131440319 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131441243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85830 + ... + 87347.

It is an arithmetic number, because the mean of its divisors is an integer number (12468816).

Almost surely, 2131441343 is an apocalyptic number.

131441343 is a deficient number, since it is larger than the sum of its proper divisors (68059713).

131441343 is a wasteful number, since it uses less digits than its factorization.

131441343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173214.

The product of its digits is 1728, while the sum is 24.

The square root of 131441343 is about 11464.7870891700. The cubic root of 131441343 is about 508.4450176414.

Adding to 131441343 its reverse (343144131), we get a palindrome (474585474).

The spelling of 131441343 in words is "one hundred thirty-one million, four hundred forty-one thousand, three hundred forty-three".

Divisors: 1 3 11 23 33 69 253 759 173177 519531 1904947 3983071 5714841 11949213 43813781 131441343