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131039313 = 3291506199
BaseRepresentation
bin1111100111110…
…00000001010001
3100010120111010220
413303320001101
5232021224223
621000343253
73150546546
oct763700121
9303514126
10131039313
1167a71859
1237a74b29
13211c0872
1413590bcd
15b7866e3
hex7cf8051

131039313 has 8 divisors (see below), whose sum is σ = 180744000. Its totient is φ = 84347088.

The previous prime is 131039309. The next prime is 131039327. The reversal of 131039313 is 313930131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131039313 - 22 = 131039309 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131034313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 753013 + ... + 753186.

It is an arithmetic number, because the mean of its divisors is an integer number (22593000).

Almost surely, 2131039313 is an apocalyptic number.

It is an amenable number.

131039313 is a deficient number, since it is larger than the sum of its proper divisors (49704687).

131039313 is a wasteful number, since it uses less digits than its factorization.

131039313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506231.

The product of its (nonzero) digits is 729, while the sum is 24.

The square root of 131039313 is about 11447.2404098106. The cubic root of 131039313 is about 507.9261070627.

Adding to 131039313 its reverse (313930131), we get a palindrome (444969444).

The spelling of 131039313 in words is "one hundred thirty-one million, thirty-nine thousand, three hundred thirteen".

Divisors: 1 3 29 87 1506199 4518597 43679771 131039313