Search a number
-
+
540444235204541 = 1787121364904413
BaseRepresentation
bin111101011100001111111101…
…0101010010000011110111101
32121212112222000222102020122202
41322320133322222100132331
51031314114243203021131
65153232353144121245
7221556543651120353
oct17270377252203675
92555488028366582
10540444235204541
1114722512746a118
1250745868a66225
131a273898c02915
1497658d79637d3
1542732dc730bcb
hex1eb87faa907bd

540444235204541 has 8 divisors (see below), whose sum is σ = 572241642417144. Its totient is φ = 508647557975040.

The previous prime is 540444235204537. The next prime is 540444235204553. The reversal of 540444235204541 is 145402532444045.

It can be written as a sum of positive squares in 4 ways, for example, as 353650403304025 + 186793831900516 = 18805595^2 + 13667254^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 540444235204541 - 22 = 540444235204537 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 (540444235204141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180971150 + ... + 183933263.

It is an arithmetic number, because the mean of its divisors is an integer number (71530205302143).

Almost surely, 2540444235204541 is an apocalyptic number.

It is an amenable number.

540444235204541 is a deficient number, since it is larger than the sum of its proper divisors (31797407212603).

540444235204541 is a wasteful number, since it uses less digits than its factorization.

540444235204541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364991551.

The product of its (nonzero) digits is 6144000, while the sum is 47.

Adding to 540444235204541 its reverse (145402532444045), we get a palindrome (685846767648586).

The spelling of 540444235204541 in words is "five hundred forty trillion, four hundred forty-four billion, two hundred thirty-five million, two hundred four thousand, five hundred forty-one".

Divisors: 1 17 87121 1481057 364904413 6203375021 31790837364973 540444235204541