Base | Representation |
---|---|
bin | 110010011101001110… |
… | …101011001000011001 |
3 | 12011211201110222221121 |
4 | 302131032223020121 |
5 | 1341423413232040 |
6 | 40515551205241 |
7 | 3625365646261 |
oct | 623516531031 |
9 | 164751428847 |
10 | 54177477145 |
11 | 20a81856500 |
12 | a5bbb16821 |
13 | 5155390bac |
14 | 289d4827a1 |
15 | 16214c5c4a |
hex | c9d3ab219 |
54177477145 has 12 divisors (see below), whose sum is σ = 71460540900. Its totient is φ = 39401801120.
The previous prime is 54177477139. The next prime is 54177477149.
54177477145 is nontrivially palindromic in base 10.
54177477145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 2 ways, for example, as 27687961609 + 26489515536 = 166397^2 + 162756^2 .
It is not a de Polignac number, because 54177477145 - 219 = 54176952857 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 54177477092 and 54177477101.
It is not an unprimeable number, because it can be changed into a prime (54177477149) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44774170 + ... + 44775379.
It is an arithmetic number, because the mean of its divisors is an integer number (5955045075).
Almost surely, 254177477145 is an apocalyptic number.
54177477145 is a gapful number since it is divisible by the number (55) formed by its first and last digit.
It is an amenable number.
54177477145 is a deficient number, since it is larger than the sum of its proper divisors (17283063755).
54177477145 is a wasteful number, since it uses less digits than its factorization.
54177477145 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 89549576 (or 89549565 counting only the distinct ones).
The product of its digits is 3841600, while the sum is 52.
The spelling of 54177477145 in words is "fifty-four billion, one hundred seventy-seven million, four hundred seventy-seven thousand, one hundred forty-five".
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