Base | Representation |
---|---|
bin | 110110000010… |
… | …1010001010000 |
3 | 1222022110202102 |
4 | 1230011101100 |
5 | 24223130021 |
6 | 2451135532 |
7 | 462553616 |
oct | 154052120 |
9 | 58273672 |
10 | 28333136 |
11 | 14aa2117 |
12 | 95a45a8 |
13 | 5b40390 |
14 | 3a976b6 |
15 | 274a00b |
hex | 1b05450 |
28333136 has 20 divisors (see below), whose sum is σ = 59118612. Its totient is φ = 13076736.
The previous prime is 28333121. The next prime is 28333139. The reversal of 28333136 is 63133382.
It can be written as a sum of positive squares in 2 ways, for example, as 15054400 + 13278736 = 3880^2 + 3644^2 .
It is a junction number, because it is equal to n+sod(n) for n = 28333099 and 28333108.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28333139) 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, 67901 + ... + 68316.
Almost surely, 228333136 is an apocalyptic number.
28333136 is a gapful number since it is divisible by the number (26) formed by its first and last digit.
It is an amenable number.
28333136 is an abundant number, since it is smaller than the sum of its proper divisors (30785476).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28333136 is a wasteful number, since it uses less digits than its factorization.
28333136 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 136238 (or 136232 counting only the distinct ones).
The product of its digits is 7776, while the sum is 29.
The square root of 28333136 is about 5322.8879379525. The cubic root of 28333136 is about 304.8584347060.
The spelling of 28333136 in words is "twenty-eight million, three hundred thirty-three thousand, one hundred thirty-six".
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