Base | Representation |
---|---|
bin | 110101100010… |
… | …0111001101011 |
3 | 1221211002002111 |
4 | 1223010321223 |
5 | 24141210413 |
6 | 2441343151 |
7 | 460405141 |
oct | 153047153 |
9 | 57732074 |
10 | 28069483 |
11 | 14932022 |
12 | 9497ab7 |
13 | 5a7a380 |
14 | 3a29591 |
15 | 26e6d3d |
hex | 1ac4e6b |
28069483 has 4 divisors (see below), whose sum is σ = 30228688. Its totient is φ = 25910280.
The previous prime is 28069471. The next prime is 28069487. The reversal of 28069483 is 38496082.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38496082 = 2 ⋅19248041.
It is a cyclic number.
It is not a de Polignac number, because 28069483 - 25 = 28069451 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (28069487) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1079583 + ... + 1079608.
It is an arithmetic number, because the mean of its divisors is an integer number (7557172).
Almost surely, 228069483 is an apocalyptic number.
28069483 is a deficient number, since it is larger than the sum of its proper divisors (2159205).
28069483 is a wasteful number, since it uses less digits than its factorization.
28069483 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2159204.
The product of its (nonzero) digits is 82944, while the sum is 40.
The square root of 28069483 is about 5298.0640803977. The cubic root of 28069483 is about 303.9098698355.
The spelling of 28069483 in words is "twenty-eight million, sixty-nine thousand, four hundred eighty-three".
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