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131376115347 = 343792038449
BaseRepresentation
bin111101001011010100…
…0000110111010010011
3110120002211100010222220
41322112220012322103
54123024241142342
6140204154032123
712330423361311
oct1722650067223
9416084303886
10131376115347
1150797434a44
1221565718643
13c50900c979
1465041610b1
15363da8b5ec
hex1e96a06e93

131376115347 has 4 divisors (see below), whose sum is σ = 175168153800. Its totient is φ = 87584076896.

The previous prime is 131376115319. The next prime is 131376115361. The reversal of 131376115347 is 743511673131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 743511673131 = 3247837224377.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-131376115347 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131376115299 and 131376115308.

It is not an unprimeable number, because it can be changed into a prime (131376115307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21896019222 + ... + 21896019227.

It is an arithmetic number, because the mean of its divisors is an integer number (43792038450).

Almost surely, 2131376115347 is an apocalyptic number.

131376115347 is a deficient number, since it is larger than the sum of its proper divisors (43792038453).

131376115347 is an equidigital number, since it uses as much as digits as its factorization.

131376115347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43792038452.

The product of its digits is 158760, while the sum is 42.

Adding to 131376115347 its reverse (743511673131), we get a palindrome (874887788478).

The spelling of 131376115347 in words is "one hundred thirty-one billion, three hundred seventy-six million, one hundred fifteen thousand, three hundred forty-seven".

Divisors: 1 3 43792038449 131376115347