Base | Representation |
---|---|
bin | 110101100000… |
… | …1001001100111 |
3 | 1221210022000110 |
4 | 1223001021213 |
5 | 24140212434 |
6 | 2441144103 |
7 | 460312302 |
oct | 153011147 |
9 | 57708013 |
10 | 28054119 |
11 | 14921525 |
12 | 948b033 |
13 | 5a73392 |
14 | 3a23b39 |
15 | 26e24e9 |
hex | 1ac1267 |
28054119 has 16 divisors (see below), whose sum is σ = 38649312. Its totient is φ = 18091008.
The previous prime is 28054111. The next prime is 28054121. The reversal of 28054119 is 91145082.
It is a happy number.
It is not a de Polignac number, because 28054119 - 23 = 28054111 is a prime.
It is a super-2 number, since 2×280541192 = 1574067185732322, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28054111) 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, 10399 + ... + 12815.
It is an arithmetic number, because the mean of its divisors is an integer number (2415582).
Almost surely, 228054119 is an apocalyptic number.
28054119 is a deficient number, since it is larger than the sum of its proper divisors (10595193).
28054119 is a wasteful number, since it uses less digits than its factorization.
28054119 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2546.
The product of its (nonzero) digits is 2880, while the sum is 30.
The square root of 28054119 is about 5296.6139183444. The cubic root of 28054119 is about 303.8544107518.
The spelling of 28054119 in words is "twenty-eight million, fifty-four thousand, one hundred nineteen".
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