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131432420041 = 1310110186157
BaseRepresentation
bin111101001100111111…
…0111001001011001001
3110120020202021201111221
41322121332321023021
54123133144420131
6140213524522041
712332006065036
oct1723176711311
9416222251457
10131432420041
11508161a154a
1221580550321
13c517894960
14650b81a38d
1536439ae411
hex1e99fb92c9

131432420041 has 4 divisors (see below), whose sum is σ = 141542606212. Its totient is φ = 121322233872.

The previous prime is 131432420023. The next prime is 131432420047. The reversal of 131432420041 is 140024234131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 140024234131 = 221096333359.

It can be written as a sum of positive squares in 2 ways, for example, as 36062010000 + 95370410041 = 189900^2 + 308821^2 .

It is a cyclic number.

It is not a de Polignac number, because 131432420041 - 27 = 131432419913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131432419988 and 131432420015.

It is not an unprimeable number, because it can be changed into a prime (131432420047) 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, 5055093066 + ... + 5055093091.

It is an arithmetic number, because the mean of its divisors is an integer number (35385651553).

Almost surely, 2131432420041 is an apocalyptic number.

It is an amenable number.

131432420041 is a deficient number, since it is larger than the sum of its proper divisors (10110186171).

131432420041 is a wasteful number, since it uses less digits than its factorization.

131432420041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10110186170.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 131432420041 its reverse (140024234131), we get a palindrome (271456654172).

The spelling of 131432420041 in words is "one hundred thirty-one billion, four hundred thirty-two million, four hundred twenty thousand, forty-one".

Divisors: 1 13 10110186157 131432420041