Base | Representation |
---|---|
bin | 1111010101110… |
… | …00101010110011 |
3 | 22222010202110000 |
4 | 13222320222303 |
5 | 230420321200 |
6 | 20434041043 |
7 | 3121533102 |
oct | 752705263 |
9 | 288122400 |
10 | 128682675 |
11 | 66702220 |
12 | 37119183 |
13 | 20876cc4 |
14 | 1313a039 |
15 | b46d300 |
hex | 7ab8ab3 |
128682675 has 120 divisors (see below), whose sum is σ = 267371280. Its totient is φ = 60652800.
The previous prime is 128682667. The next prime is 128682683. The reversal of 128682675 is 576286821.
It is an interprime number because it is at equal distance from previous prime (128682667) and next prime (128682683).
It is not a de Polignac number, because 128682675 - 23 = 128682667 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a self number, because there is not a number n which added to its sum of digits gives 128682675.
It is an unprimeable number.
It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 1180521 + ... + 1180629.
It is an arithmetic number, because the mean of its divisors is an integer number (2228094).
Almost surely, 2128682675 is an apocalyptic number.
128682675 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
128682675 is an abundant number, since it is smaller than the sum of its proper divisors (138688605).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
128682675 is a wasteful number, since it uses less digits than its factorization.
128682675 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 195 (or 181 counting only the distinct ones).
The product of its digits is 322560, while the sum is 45.
The square root of 128682675 is about 11343.8386360174. The cubic root of 128682675 is about 504.8627866273.
The spelling of 128682675 in words is "one hundred twenty-eight million, six hundred eighty-two thousand, six hundred seventy-five".
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