Base | Representation |
---|---|
bin | 110110111010… |
… | …1011110100101 |
3 | 2000011211012211 |
4 | 1231311132211 |
5 | 24332331431 |
6 | 2505043421 |
7 | 466506565 |
oct | 155653645 |
9 | 60154184 |
10 | 28792741 |
11 | 1528645a |
12 | 9786571 |
13 | 5c71633 |
14 | 3b76da5 |
15 | 27db2b1 |
hex | 1b757a5 |
28792741 has 2 divisors, whose sum is σ = 28792742. Its totient is φ = 28792740.
The previous prime is 28792721. The next prime is 28792759. The reversal of 28792741 is 14729782.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 25462116 + 3330625 = 5046^2 + 1825^2 .
It is a cyclic number.
It is not a de Polignac number, because 28792741 - 29 = 28792229 is a prime.
It is equal to p1787629 and since 28792741 and 1787629 have the same sum of digits, it is a Honaker prime.
It is a junction number, because it is equal to n+sod(n) for n = 28792694 and 28792703.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (28792721) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14396370 + 14396371.
It is an arithmetic number, because the mean of its divisors is an integer number (14396371).
Almost surely, 228792741 is an apocalyptic number.
It is an amenable number.
28792741 is a deficient number, since it is larger than the sum of its proper divisors (1).
28792741 is an equidigital number, since it uses as much as digits as its factorization.
28792741 is an evil number, because the sum of its binary digits is even.
The product of its digits is 56448, while the sum is 40.
The square root of 28792741 is about 5365.8867859842. The cubic root of 28792741 is about 306.4980178297.
The spelling of 28792741 in words is "twenty-eight million, seven hundred ninety-two thousand, seven hundred forty-one".
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