Search a number
-
+
131144440102 = 21313217381631
BaseRepresentation
bin111101000100011010…
…0010101100100100110
3110112111200101211022021
41322020310111210212
54122040434040402
6140125200253354
712321611230264
oct1721064254446
9415450354267
10131144440102
11506886879a5
122150001125a
13c4a0015020
1464c1495434
153628576d37
hex1e88d15926

131144440102 has 16 divisors (see below), whose sum is σ = 211865294592. Its totient is φ = 60523464960.

The previous prime is 131144440087. The next prime is 131144440151. The reversal of 131144440102 is 201044441131.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 152827 + ... + 534457.

It is an arithmetic number, because the mean of its divisors is an integer number (13241580912).

Almost surely, 2131144440102 is an apocalyptic number.

131144440102 is a deficient number, since it is larger than the sum of its proper divisors (80720854490).

131144440102 is a wasteful number, since it uses less digits than its factorization.

131144440102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394863.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 131144440102 its reverse (201044441131), we get a palindrome (332188881233).

The spelling of 131144440102 in words is "one hundred thirty-one billion, one hundred forty-four million, four hundred forty thousand, one hundred two".

Divisors: 1 2 13 26 13217 26434 171821 343642 381631 763262 4961203 9922406 5044016927 10088033854 65572220051 131144440102