28161870 is an even 8-digits composite number following 28161869
and preceding 28161871 . In scientific notation, it is written as 2.8161870 × 10^7.
The sum of its digits is 33. It has a total of 5 prime factors and 32 positive divisors.
There are 6710400 positive integers (up to 28161870) that are relatively prime to 28161870.
28161870 has 32 divisors, whose sum is 67737600
The reverse of 28161870 is 07816182
Previous prime number is 671
Is Prime? no Number parity even Number length 8 Sum of Digits 33 Digital Root 6
Name
twenty-eight million one hundred sixty-one thousand eight hundred seventy
Scientific notation
2.8161870 × 10^7
Engineering notation
2.8161870 × 10^6
Prime Factorization
2 × 3 × 5 × 671 × 1399
Composite number
ω Distinct Factors
5 Total number of distinct prime factors
Ω Total Factors
5 Total number of prime factors
rad Radical
28161870 Product of the distinct prime numbers
The prime factorization of 28161870 is 2 × 3 × 5 × 671 × 1399.
Since it has a total of 5 prime factors.
2 , 8 , 61 , 31 , 587 , 412 , 9249 , 9038 , 6640 , 5578 , 322002 , 533483 , 8358859 , 796926 , 33620647 , 98908658 , 626024291 , 431120871 , 2956142873 , 8327029452
n×2
56323740
n×3
84485610
n×4
112647480
n×5
140809350
n÷2
14080935
n÷3
9387290
n÷3
7040467.5
n÷5
5632374
n2
793090921896900
n3
2.2334923440641E+22
n4
6.2899321039527E+29
n5
1.7713625022034E+37
2 √n5306.7758573356
3 √n304.24293110683
4 √n72.847620807653
5 √n30.898137242114
1 , 2 , 3 , 5 , 6 , 10 , 15 , 30 , 671 , 1342 , 1399 , 2013 , 2798 , 3355 , 4026 , 4197 , 6710 , 6995 , 8394 , 10065 , 13990 , 20130 , 20985 , 41970 , 938729 , 1877458 , 2816187 , 4693645 , 5632374 , 9387290 , 14080935 , 28161870
32 divisors
τ Total Divisors
32 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-28161869 Sum of the proper positive divisors of n
A Arithmetic Mean
0.03125 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
1 Returns the nth root of the product of n divisors
H Harmonic Mean
32 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28161870 can be divided by 32 positive divisors.
The sum of these divisors (counting 28161870) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1101011011011011101001110
3
Ternary
1221222202211020
4
Quaternary
1223123131032
5
Quinary
24202134440
6
Senary
2443335010
8
Octal
153333516
10
Decimal
28161870
12
Duodecimal
9521466
16
Hexadecimal
1adb74e
20
Vigesimal
8g04da
36
Base36
grlu6
md5
2488b2f3ae58c8c1f7b6aed085ba5316
sha1
288c46eb3c4e705cb07927881b5d155d8ded97ec
sha256
b9dec8231cef87269cc5267d0c5901394fcf1eb4160647bcd7132dd156cc4edf
sha512
348e6349f6c35fe8fea7d62c08996f5dceedf5a17abc16cf720190389c4ba1e7f7cdd48e115063ffb661aaef340b47180a6c5cb1d34c59f383947a07f3248b0f
ripemd-160
1cd24321ee6b47c809cce1c35a411e30a48b79fb
Diameter
56323740
Circumference
176946247.8067
Area
2.4915686138601E+15
Volume
9.355630853281E+22
Surface area
9.9662744554402E+15
Circumference
176946247.8067
Perimeter
112647480
Area
793090921896900
Diagonal
39826898.495788
Surface area
4758545531381400
Volume
2.2334923440641E+22
Space diagonal
48777789.67615
Perimeter
84485610
Area
3.4341844293677E+14
Altitude
24388894.838075
Surface area
3.4341844293677E+14
Volume
2.6321959703599E+21
Height
13275632.831929