Base | Representation |
---|---|
bin | 110101011101… |
… | …1010001100110 |
3 | 1221202002000011 |
4 | 1222323101212 |
5 | 24133430204 |
6 | 2440440434 |
7 | 460152163 |
oct | 152732146 |
9 | 57662004 |
10 | 28030054 |
11 | 14905438 |
12 | 947911a |
13 | 5a65440 |
14 | 3a1906a |
15 | 26da304 |
hex | 1abb466 |
28030054 has 32 divisors (see below), whose sum is σ = 49754880. Its totient is φ = 11718432.
The previous prime is 28030033. The next prime is 28030061. The reversal of 28030054 is 45003082.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10129 + ... + 12595.
It is an arithmetic number, because the mean of its divisors is an integer number (1554840).
Almost surely, 228030054 is an apocalyptic number.
28030054 is a deficient number, since it is larger than the sum of its proper divisors (21724826).
28030054 is a wasteful number, since it uses less digits than its factorization.
28030054 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2524.
The product of its (nonzero) digits is 960, while the sum is 22.
The square root of 28030054 is about 5294.3416965663. The cubic root of 28030054 is about 303.7675031546.
The spelling of 28030054 in words is "twenty-eight million, thirty thousand, fifty-four".
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