Base | Representation |
---|---|
bin | 110010110000110111… |
… | …111010011101001001 |
3 | 12012200200122021122220 |
4 | 302300313322131021 |
5 | 1343112301224141 |
6 | 41012403204253 |
7 | 3636510215364 |
oct | 626067723511 |
9 | 165620567586 |
10 | 54507054921 |
11 | 211308a2130 |
12 | a692376689 |
13 | 51a8746727 |
14 | 28d11550db |
15 | 16403c8766 |
hex | cb0dfa749 |
54507054921 has 8 divisors (see below), whose sum is σ = 79282989024. Its totient is φ = 33034578720.
The previous prime is 54507054913. The next prime is 54507054937. The reversal of 54507054921 is 12945070545.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 54507054921 - 23 = 54507054913 is a prime.
It is an alternating number because its digits alternate between odd and even.
It is not an unprimeable number, because it can be changed into a prime (54507054961) 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, 825864436 + ... + 825864501.
It is an arithmetic number, because the mean of its divisors is an integer number (9910373628).
Almost surely, 254507054921 is an apocalyptic number.
It is an amenable number.
54507054921 is a deficient number, since it is larger than the sum of its proper divisors (24775934103).
54507054921 is a wasteful number, since it uses less digits than its factorization.
54507054921 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1651728951.
The product of its (nonzero) digits is 252000, while the sum is 42.
The spelling of 54507054921 in words is "fifty-four billion, five hundred seven million, fifty-four thousand, nine hundred twenty-one".
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