Base | Representation |
---|---|
bin | 1111010111000… |
… | …01110110010111 |
3 | 22222110022211021 |
4 | 13223201312113 |
5 | 230441220401 |
6 | 20441422011 |
7 | 3123134626 |
oct | 753416627 |
9 | 288408737 |
10 | 128851351 |
11 | 66807a22 |
12 | 3719a907 |
13 | 20905a05 |
14 | 131816bd |
15 | b4a32a1 |
hex | 7ae1d97 |
128851351 has 4 divisors (see below), whose sum is σ = 130616512. Its totient is φ = 127086192.
The previous prime is 128851309. The next prime is 128851361. The reversal of 128851351 is 153158821.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 128851351 - 27 = 128851223 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (128851361) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 882471 + ... + 882616.
It is an arithmetic number, because the mean of its divisors is an integer number (32654128).
Almost surely, 2128851351 is an apocalyptic number.
128851351 is a deficient number, since it is larger than the sum of its proper divisors (1765161).
128851351 is an equidigital number, since it uses as much as digits as its factorization.
128851351 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1765160.
The product of its digits is 9600, while the sum is 34.
The square root of 128851351 is about 11351.2708980096. The cubic root of 128851351 is about 505.0832800602.
The spelling of 128851351 in words is "one hundred twenty-eight million, eight hundred fifty-one thousand, three hundred fifty-one".
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