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141131447 = 829170243
BaseRepresentation
bin10000110100101…
…11111010110111
3100211120012221122
420122113322313
5242112201242
622000534155
73332411642
oct1032277267
9324505848
10141131447
1172735166
123b32135b
1323315342
1414a5aa59
15c5cbad2
hex8697eb7

141131447 has 4 divisors (see below), whose sum is σ = 141302520. Its totient is φ = 140960376.

The previous prime is 141131423. The next prime is 141131453. The reversal of 141131447 is 744131141.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 744131141 = 1357240857.

It is a cyclic number.

It is not a de Polignac number, because 141131447 - 214 = 141115063 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 (141131477) 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, 84293 + ... + 85950.

It is an arithmetic number, because the mean of its divisors is an integer number (35325630).

Almost surely, 2141131447 is an apocalyptic number.

141131447 is a deficient number, since it is larger than the sum of its proper divisors (171073).

141131447 is an equidigital number, since it uses as much as digits as its factorization.

141131447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171072.

The product of its digits is 1344, while the sum is 26.

The square root of 141131447 is about 11879.8757148381. The cubic root of 141131447 is about 520.6444758232.

Adding to 141131447 its reverse (744131141), we get a palindrome (885262588).

The spelling of 141131447 in words is "one hundred forty-one million, one hundred thirty-one thousand, four hundred forty-seven".

Divisors: 1 829 170243 141131447