Base | Representation |
---|---|
bin | 110010110001001110… |
… | …101101100101111001 |
3 | 12012201002212221001100 |
4 | 302301032231211321 |
5 | 1343120314002140 |
6 | 41013135242013 |
7 | 3636612060060 |
oct | 626116554571 |
9 | 165632787040 |
10 | 54513031545 |
11 | 21134204495 |
12 | a694379309 |
13 | 51a9a59bab |
14 | 28d1c6d1d7 |
15 | 1640ba9530 |
hex | cb13ad979 |
54513031545 has 96 divisors (see below), whose sum is σ = 112367803392. Its totient is φ = 23929491456.
The previous prime is 54513031543. The next prime is 54513031553.
54513031545 is a `hidden beast` number, since 5 + 4 + 51 + 30 + 31 + 545 = 666.
54513031545 is nontrivially palindromic in base 10.
It is not a de Polignac number, because 54513031545 - 21 = 54513031543 is a prime.
It is not an unprimeable number, because it can be changed into a prime (54513031541) by changing a digit.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 749929 + ... + 819401.
It is an arithmetic number, because the mean of its divisors is an integer number (1170497952).
Almost surely, 254513031545 is an apocalyptic number.
It is an amenable number.
54513031545 is an abundant number, since it is smaller than the sum of its proper divisors (57854771847).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
54513031545 is a wasteful number, since it uses less digits than its factorization.
54513031545 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 69591 (or 69588 counting only the distinct ones).
The product of its (nonzero) digits is 90000, while the sum is 36.
It can be divided in two parts, 545130 and 31545, that added together give a palindrome (576675).
The spelling of 54513031545 in words is "fifty-four billion, five hundred thirteen million, thirty-one thousand, five hundred forty-five".
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