Base | Representation |
---|---|
bin | 1111010010101… |
… | …00111010100010 |
3 | 22221100222221221 |
4 | 13221110322202 |
5 | 230314232312 |
6 | 20421205254 |
7 | 3115211626 |
oct | 751247242 |
9 | 287328857 |
10 | 128274082 |
11 | 66453242 |
12 | 36b6082a |
13 | 20763031 |
14 | 13071186 |
15 | b3dc207 |
hex | 7a54ea2 |
128274082 has 8 divisors (see below), whose sum is σ = 200776896. Its totient is φ = 61348452.
The previous prime is 128274077. The next prime is 128274089. The reversal of 128274082 is 280472821.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a super-2 number, since 2×1282740822 = 32908480225885448, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (128274089) 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, 1394238 + ... + 1394329.
It is an arithmetic number, because the mean of its divisors is an integer number (25097112).
Almost surely, 2128274082 is an apocalyptic number.
128274082 is a deficient number, since it is larger than the sum of its proper divisors (72502814).
128274082 is a wasteful number, since it uses less digits than its factorization.
128274082 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2788592.
The product of its (nonzero) digits is 14336, while the sum is 34.
The square root of 128274082 is about 11325.8148492724. The cubic root of 128274082 is about 504.3278736026.
The spelling of 128274082 in words is "one hundred twenty-eight million, two hundred seventy-four thousand, eighty-two".
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