Search a number
-
+
131201404330244 = 22279001117563561
BaseRepresentation
bin11101110101001110110101…
…000110010110000100000100
3122012112201202110012202200112
4131311032311012112010010
5114144100434002031434
61143013032034132152
736430663052054003
oct3565166506260404
9565481673182615
10131201404330244
1138894226370426
121286b864a21058
135829315aa6621
142458279004c3a
151027cb26d1dce
hex7753b5196104

131201404330244 has 12 divisors (see below), whose sum is σ = 229603282475868. Its totient is φ = 65600466480000.

The previous prime is 131201404330219. The next prime is 131201404330387. The reversal of 131201404330244 is 442033404102131.

It can be written as a sum of positive squares in 2 ways, for example, as 11534432552644 + 119666971777600 = 3396238^2 + 10939240^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 131201404330244.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57665777 + ... + 59897784.

It is an arithmetic number, because the mean of its divisors is an integer number (19133606872989).

Almost surely, 2131201404330244 is an apocalyptic number.

It is an amenable number.

131201404330244 is a deficient number, since it is larger than the sum of its proper divisors (98401878145624).

131201404330244 is a wasteful number, since it uses less digits than its factorization.

131201404330244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117842566 (or 117842564 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 131201404330244 its reverse (442033404102131), we get a palindrome (573234808432375).

The spelling of 131201404330244 in words is "one hundred thirty-one trillion, two hundred one billion, four hundred four million, three hundred thirty thousand, two hundred forty-four".

Divisors: 1 2 4 279001 558002 1116004 117563561 235127122 470254244 32800351082561 65600702165122 131201404330244