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131024333413 = 257509822309
BaseRepresentation
bin111101000000110101…
…0001010101001100101
3110112012022101202220101
41322001222022221211
54121314212132123
6140105230104101
712315622313101
oct1720152125145
9415168352811
10131024333413
1150626902a76
122148794b031
13c48118168c
1464ad54c901
15361cc4eaad
hex1e81a8aa65

131024333413 has 4 divisors (see below), whose sum is σ = 131534155980. Its totient is φ = 130514510848.

The previous prime is 131024333399. The next prime is 131024333443. The reversal of 131024333413 is 314333420131.

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

It can be written as a sum of positive squares in 2 ways, for example, as 116214173604 + 14810159809 = 340902^2 + 121697^2 .

It is a cyclic number.

It is not a de Polignac number, because 131024333413 - 213 = 131024325221 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 (131024333443) 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, 254910898 + ... + 254911411.

It is an arithmetic number, because the mean of its divisors is an integer number (32883538995).

Almost surely, 2131024333413 is an apocalyptic number.

It is an amenable number.

131024333413 is a deficient number, since it is larger than the sum of its proper divisors (509822567).

131024333413 is an equidigital number, since it uses as much as digits as its factorization.

131024333413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509822566.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 131024333413 its reverse (314333420131), we get a palindrome (445357753544).

The spelling of 131024333413 in words is "one hundred thirty-one billion, twenty-four million, three hundred thirty-three thousand, four hundred thirteen".

Divisors: 1 257 509822309 131024333413