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131402430541 = 241545238301
BaseRepresentation
bin111101001100000110…
…0011111100001001101
3110120011122212002122201
41322120030133201031
54123103010234131
6140210534041501
712331163142064
oct1723014374115
9416148762581
10131402430541
1150800278a38
12215724a9291
13c5115c46a5
1465078511db
153641038761
hex1e9831f84d

131402430541 has 4 divisors (see below), whose sum is σ = 131947669084. Its totient is φ = 130857192000.

The previous prime is 131402430521. The next prime is 131402430547. The reversal of 131402430541 is 145034204131.

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 121965085225 + 9437345316 = 349235^2 + 97146^2 .

It is a cyclic number.

It is not a de Polignac number, because 131402430541 - 27 = 131402430413 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 (131402430547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 272618910 + ... + 272619391.

It is an arithmetic number, because the mean of its divisors is an integer number (32986917271).

Almost surely, 2131402430541 is an apocalyptic number.

It is an amenable number.

131402430541 is a deficient number, since it is larger than the sum of its proper divisors (545238543).

131402430541 is an equidigital number, since it uses as much as digits as its factorization.

131402430541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545238542.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 131402430541 its reverse (145034204131), we get a palindrome (276436634672).

The spelling of 131402430541 in words is "one hundred thirty-one billion, four hundred two million, four hundred thirty thousand, five hundred forty-one".

Divisors: 1 241 545238301 131402430541