Base | Representation |
---|---|
bin | 1111010000101… |
… | …00111110101011 |
3 | 22220212200201201 |
4 | 13220110332223 |
5 | 230232342303 |
6 | 20411425031 |
7 | 3113041264 |
oct | 750247653 |
9 | 286780651 |
10 | 128012203 |
11 | 66294510 |
12 | 36a55177 |
13 | 206a0a87 |
14 | 1300396b |
15 | b38981d |
hex | 7a14fab |
128012203 has 8 divisors (see below), whose sum is σ = 139731696. Its totient is φ = 116306400.
The previous prime is 128012197. The next prime is 128012233. The reversal of 128012203 is 302210821.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 128012203 - 225 = 94457771 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (128012233) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33625 + ... + 37237.
It is an arithmetic number, because the mean of its divisors is an integer number (17466462).
Almost surely, 2128012203 is an apocalyptic number.
128012203 is a deficient number, since it is larger than the sum of its proper divisors (11719493).
128012203 is a wasteful number, since it uses less digits than its factorization.
128012203 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6845.
The product of its (nonzero) digits is 192, while the sum is 19.
The square root of 128012203 is about 11314.2477876348. The cubic root of 128012203 is about 503.9844348830.
The spelling of 128012203 in words is "one hundred twenty-eight million, twelve thousand, two hundred three".
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