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141231313 = 197433227
BaseRepresentation
bin10000110101100…
…00010011010001
3100211202021221101
420122300103101
5242123400223
622003024401
73333306046
oct1032602321
9324667841
10141231313
11727a31a3
123b36b101
132334b932
1414a851cd
15c5eb4ad
hex86b04d1

141231313 has 4 divisors (see below), whose sum is σ = 148664560. Its totient is φ = 133798068.

The previous prime is 141231301. The next prime is 141231353. The reversal of 141231313 is 313132141.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 141231313 - 25 = 141231281 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 7433227 = 141231313 / (1 + 4 + 1 + 2 + 3 + 1 + 3 + 1 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (141231353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3716595 + ... + 3716632.

It is an arithmetic number, because the mean of its divisors is an integer number (37166140).

Almost surely, 2141231313 is an apocalyptic number.

It is an amenable number.

141231313 is a deficient number, since it is larger than the sum of its proper divisors (7433247).

141231313 is an equidigital number, since it uses as much as digits as its factorization.

141231313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7433246.

The product of its digits is 216, while the sum is 19.

The square root of 141231313 is about 11884.0781300023. The cubic root of 141231313 is about 520.7672512526.

Adding to 141231313 its reverse (313132141), we get a palindrome (454363454).

The spelling of 141231313 in words is "one hundred forty-one million, two hundred thirty-one thousand, three hundred thirteen".

Divisors: 1 19 7433227 141231313