Base | Representation |
---|---|
bin | 10101011101100… |
… | …00101101000000 |
3 | 110112202111002212 |
4 | 22232300231000 |
5 | 332041432042 |
6 | 25510401252 |
7 | 4314142412 |
oct | 1256605500 |
9 | 415674085 |
10 | 180030272 |
11 | 92693454 |
12 | 50360228 |
13 | 2b3b48b6 |
14 | 19ca49b2 |
15 | 10c12482 |
hex | abb0b40 |
180030272 has 28 divisors (see below), whose sum is σ = 378264420. Its totient is φ = 84719616.
The previous prime is 180030259. The next prime is 180030283. The reversal of 180030272 is 272030081.
It can be written as a sum of positive squares in 2 ways, for example, as 160174336 + 19855936 = 12656^2 + 4456^2 .
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81647 + ... + 83822.
Almost surely, 2180030272 is an apocalyptic number.
It is an amenable number.
180030272 is an abundant number, since it is smaller than the sum of its proper divisors (198234148).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
180030272 is a wasteful number, since it uses less digits than its factorization.
180030272 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 165498 (or 165488 counting only the distinct ones).
The product of its (nonzero) digits is 672, while the sum is 23.
The square root of 180030272 is about 13417.5359883997. The cubic root of 180030272 is about 564.6532678240.
The spelling of 180030272 in words is "one hundred eighty million, thirty thousand, two hundred seventy-two".
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