Base | Representation |
---|---|
bin | 11010100101111101… |
… | …011101110001010001 |
3 | 2201200222200110211110 |
4 | 122211331131301101 |
5 | 431434331012022 |
6 | 21041222403533 |
7 | 2030412221352 |
oct | 324575356121 |
9 | 81628613743 |
10 | 28554157137 |
11 | 11123093980 |
12 | 564a8905a9 |
13 | 290098548c |
14 | 154c401d29 |
15 | b21c2b00c |
hex | 6a5f5dc51 |
28554157137 has 16 divisors (see below), whose sum is σ = 42546329280. Its totient is φ = 16883462400.
The previous prime is 28554157129. The next prime is 28554157169. The reversal of 28554157137 is 73175145582.
It is not a de Polignac number, because 28554157137 - 23 = 28554157129 is a prime.
It is not an unprimeable number, because it can be changed into a prime (28554157337) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10550812 + ... + 10553517.
It is an arithmetic number, because the mean of its divisors is an integer number (2659145580).
Almost surely, 228554157137 is an apocalyptic number.
It is an amenable number.
28554157137 is a deficient number, since it is larger than the sum of its proper divisors (13992172143).
28554157137 is a wasteful number, since it uses less digits than its factorization.
28554157137 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 21104384.
The product of its digits is 1176000, while the sum is 48.
The spelling of 28554157137 in words is "twenty-eight billion, five hundred fifty-four million, one hundred fifty-seven thousand, one hundred thirty-seven".
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