Base | Representation |
---|---|
bin | 110101010111… |
… | …1110100011010 |
3 | 1221122200122020 |
4 | 1222233310122 |
5 | 24130430010 |
6 | 2435435310 |
7 | 456565320 |
oct | 152576432 |
9 | 57580566 |
10 | 27983130 |
11 | 1488315a |
12 | 9455b36 |
13 | 5a49c86 |
14 | 3a05d10 |
15 | 26cb470 |
hex | 1aafd1a |
27983130 has 32 divisors (see below), whose sum is σ = 76754304. Its totient is φ = 6396096.
The previous prime is 27983119. The next prime is 27983147. The reversal of 27983130 is 3138972.
It is a junction number, because it is equal to n+sod(n) for n = 27983091 and 27983100.
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, 66417 + ... + 66836.
It is an arithmetic number, because the mean of its divisors is an integer number (2398572).
Almost surely, 227983130 is an apocalyptic number.
27983130 is an abundant number, since it is smaller than the sum of its proper divisors (48771174).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
27983130 is a wasteful number, since it uses less digits than its factorization.
27983130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 133270.
The product of its (nonzero) digits is 9072, while the sum is 33.
The square root of 27983130 is about 5289.9083167858. The cubic root of 27983130 is about 303.5979001072.
The spelling of 27983130 in words is "twenty-seven million, nine hundred eighty-three thousand, one hundred thirty".
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