Base | Representation |
---|---|
bin | 110010100000001101… |
… | …101111001100010001 |
3 | 12011222012201122012200 |
4 | 302200031233030101 |
5 | 1342024224011111 |
6 | 40524540513413 |
7 | 3626544453063 |
oct | 624015571421 |
9 | 164865648180 |
10 | 54227563281 |
11 | 20aa8055a01 |
12 | a61484b869 |
13 | 5162879568 |
14 | 28a5d9d733 |
15 | 1625abb256 |
hex | ca036f311 |
54227563281 has 6 divisors (see below), whose sum is σ = 78328702530. Its totient is φ = 36151708848.
The previous prime is 54227563183. The next prime is 54227563307. The reversal of 54227563281 is 18236572245.
54227563281 is a `hidden beast` number, since 5 + 4 + 2 + 2 + 7 + 5 + 632 + 8 + 1 = 666.
It can be written as a sum of positive squares in only one way, i.e., 31252582656 + 22974980625 = 176784^2 + 151575^2 .
It is not a de Polignac number, because 54227563281 - 225 = 54194008849 is a prime.
It is a super-2 number, since 2×542275632812 (a number of 22 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (54227561281) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3012642396 + ... + 3012642413.
It is an arithmetic number, because the mean of its divisors is an integer number (13054783755).
Almost surely, 254227563281 is an apocalyptic number.
It is an amenable number.
54227563281 is a deficient number, since it is larger than the sum of its proper divisors (24101139249).
54227563281 is a wasteful number, since it uses less digits than its factorization.
54227563281 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6025284815 (or 6025284812 counting only the distinct ones).
The product of its digits is 806400, while the sum is 45.
The spelling of 54227563281 in words is "fifty-four billion, two hundred twenty-seven million, five hundred sixty-three thousand, two hundred eighty-one".
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