Base | Representation |
---|---|
bin | 1111010111000… |
… | …10000010101111 |
3 | 22222110100220121 |
4 | 13223202002233 |
5 | 230441232033 |
6 | 20441425411 |
7 | 3123140140 |
oct | 753420257 |
9 | 288410817 |
10 | 128852143 |
11 | 66808582 |
12 | 3719b267 |
13 | 20906194 |
14 | 13181ac7 |
15 | b4a362d |
hex | 7ae20af |
128852143 has 8 divisors (see below), whose sum is σ = 147456288. Its totient is φ = 110297184.
The previous prime is 128852131. The next prime is 128852147. The reversal of 128852143 is 341258821.
It is a happy number.
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 128852143 - 217 = 128721071 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 128852099 and 128852108.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (128852147) 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, 6496 + ... + 17317.
It is an arithmetic number, because the mean of its divisors is an integer number (18432036).
Almost surely, 2128852143 is an apocalyptic number.
128852143 is a deficient number, since it is larger than the sum of its proper divisors (18604145).
128852143 is an equidigital number, since it uses as much as digits as its factorization.
128852143 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 24593.
The product of its digits is 15360, while the sum is 34.
The square root of 128852143 is about 11351.3057839175. The cubic root of 128852143 is about 505.0843149093.
The spelling of 128852143 in words is "one hundred twenty-eight million, eight hundred fifty-two thousand, one hundred forty-three".
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