Base | Representation |
---|---|
bin | 110010110011001001… |
… | …001010001010010011 |
3 | 12012210100021201000212 |
4 | 302303021022022103 |
5 | 1343202023131011 |
6 | 41020243234335 |
7 | 3640451646002 |
oct | 626311121223 |
9 | 165710251025 |
10 | 54545130131 |
11 | 21150338648 |
12 | a6a30789ab |
13 | 51b35b813b |
14 | 28d6226c39 |
15 | 16438ea08b |
hex | cb324a293 |
54545130131 has 4 divisors (see below), whose sum is σ = 56916657552. Its totient is φ = 52173602712.
The previous prime is 54545130091. The next prime is 54545130187. The reversal of 54545130131 is 13103154545.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-54545130131 is a prime.
It is a super-2 number, since 2×545451301312 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (54545100131) 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, 1185763676 + ... + 1185763721.
It is an arithmetic number, because the mean of its divisors is an integer number (14229164388).
Almost surely, 254545130131 is an apocalyptic number.
54545130131 is a deficient number, since it is larger than the sum of its proper divisors (2371527421).
54545130131 is a wasteful number, since it uses less digits than its factorization.
54545130131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2371527420.
The product of its (nonzero) digits is 18000, while the sum is 32.
Adding to 54545130131 its reverse (13103154545), we get a palindrome (67648284676).
The spelling of 54545130131 in words is "fifty-four billion, five hundred forty-five million, one hundred thirty thousand, one hundred thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.072 sec. • engine limits •