Base | Representation |
---|---|
bin | 1111011000000… |
… | …01010001111111 |
3 | 22222200212102120 |
4 | 13230001101333 |
5 | 231004330340 |
6 | 20444254023 |
7 | 3124212156 |
oct | 754012177 |
9 | 288625376 |
10 | 128980095 |
11 | 66895722 |
12 | 37241313 |
13 | 2094c4aa |
14 | 131b659d |
15 | b4cb4d0 |
hex | 7b0147f |
128980095 has 8 divisors (see below), whose sum is σ = 206368176. Its totient is φ = 68789376.
The previous prime is 128980087. The next prime is 128980109. The reversal of 128980095 is 590089821.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 128980095 - 23 = 128980087 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4299322 + ... + 4299351.
It is an arithmetic number, because the mean of its divisors is an integer number (25796022).
Almost surely, 2128980095 is an apocalyptic number.
128980095 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
128980095 is a deficient number, since it is larger than the sum of its proper divisors (77388081).
128980095 is an equidigital number, since it uses as much as digits as its factorization.
128980095 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8598681.
The product of its (nonzero) digits is 51840, while the sum is 42.
The square root of 128980095 is about 11356.9403890308. The cubic root of 128980095 is about 505.2514448896.
The spelling of 128980095 in words is "one hundred twenty-eight million, nine hundred eighty thousand, ninety-five".
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