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131114443 = 472789669
BaseRepresentation
bin1111101000010…
…10010111001011
3100010201022012111
413310022113023
5232031130233
621002123151
73151311565
oct764122713
9303638174
10131114443
1168013249
1237ab04b7
1321218b15
14135b0335
15b79dacd
hex7d0a5cb

131114443 has 4 divisors (see below), whose sum is σ = 133904160. Its totient is φ = 128324728.

The previous prime is 131114413. The next prime is 131114447. The reversal of 131114443 is 344411131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-131114443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131114447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1394788 + ... + 1394881.

It is an arithmetic number, because the mean of its divisors is an integer number (33476040).

Almost surely, 2131114443 is an apocalyptic number.

131114443 is a deficient number, since it is larger than the sum of its proper divisors (2789717).

131114443 is an equidigital number, since it uses as much as digits as its factorization.

131114443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2789716.

The product of its digits is 576, while the sum is 22.

The square root of 131114443 is about 11450.5215165074. The cubic root of 131114443 is about 508.0231598654.

Adding to 131114443 its reverse (344411131), we get a palindrome (475525574).

The spelling of 131114443 in words is "one hundred thirty-one million, one hundred fourteen thousand, four hundred forty-three".

Divisors: 1 47 2789669 131114443