Base | Representation |
---|---|
bin | 110110001110… |
… | …1000011100111 |
3 | 1222111102101222 |
4 | 1230131003213 |
5 | 24234234232 |
6 | 2453210555 |
7 | 463440644 |
oct | 154350347 |
9 | 58442358 |
10 | 28430567 |
11 | 15059340 |
12 | 9630a5b |
13 | 5b75829 |
14 | 3ac0dcb |
15 | 2768d12 |
hex | 1b1d0e7 |
28430567 has 4 divisors (see below), whose sum is σ = 31015176. Its totient is φ = 25845960.
The previous prime is 28430561. The next prime is 28430569. The reversal of 28430567 is 76503482.
It is a happy number.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 28430567 - 210 = 28429543 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28430561) 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, 1292288 + ... + 1292309.
It is an arithmetic number, because the mean of its divisors is an integer number (7753794).
Almost surely, 228430567 is an apocalyptic number.
28430567 is a deficient number, since it is larger than the sum of its proper divisors (2584609).
28430567 is a wasteful number, since it uses less digits than its factorization.
28430567 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2584608.
The product of its (nonzero) digits is 40320, while the sum is 35.
The square root of 28430567 is about 5332.0321641941. The cubic root of 28430567 is about 305.2074804337.
The spelling of 28430567 in words is "twenty-eight million, four hundred thirty thousand, five hundred sixty-seven".
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