28161871 is an odd 8-digits composite number following 28161870
and preceding 28161872 . In scientific notation, it is written as 2.8161871 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 27190744 positive integers (up to 28161871) that are relatively prime to 28161871.
28161871 has 4 divisors, whose sum is 29133000
The reverse of 28161871 is 17816182
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-eight million one hundred sixty-one thousand eight hundred seventy-one
Scientific notation
2.8161871 × 10^7
Engineering notation
2.8161871 × 10^6
Prime Factorization
29 × 971099
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28161871
Product of the distinct prime numbers
The prime factorization of 28161871 is 29 × 971099.
Since it has a total of 2 prime factors.
10 , 4 , 80 , 30 , 363 , 174 , 5290 , 717 , 1672 , 26006 , 604219 , 542911 , 7313982 , 4267368 , 42419909 , 92565489 , 168001438 , 581634144 , 853263250 , 7975212549
n×2
56323742
n×3
84485613
n×4
112647484
n×5
140809355
n÷2
14080935.5
n÷3
9387290.3333333
n÷3
7040467.75
n÷5
5632374.2
n2
793090978220641
n3
2.2334925819914E+22
n4
6.2899329973497E+29
n5
1.7713628167001E+37
2 √n
5306.7759515548
3 √n
304.24293470795
4 √n
72.84762145434
5 √n
30.898137461547
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28161870
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28161871 can be divided by 4 positive divisors.
The sum of these divisors (counting 28161871) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101011011011011101001111
3
Ternary
1221222202211021
4
Quaternary
1223123131033
5
Quinary
24202134441
6
Senary
2443335011
8
Octal
153333517
10
Decimal
28161871
12
Duodecimal
9521467
16
Hexadecimal
1adb74f
20
Vigesimal
8g04db
36
Base36
grlu7
md5
ade6a342211d8b7ed3767e936451d51e
sha1
a7ba860f56f2a2235cdf5d6aeaccc7fc91ec9234
sha256
90453dad441a0fa6378d8e691002b8d25ca024211cf07a522af329739d94da9b
sha512
44fcc64fee4a41644d9aae64d59d82cdd81f80019405cb917cbb50cebf7be767ff03b3e881e844e5b7f2b59ceb75e7d43cc577152d7d211939058c561251d906
ripemd-160
995a3d0bfc68b3c939b5a12e87bcc0de637bc7d9
Diameter
56323742
Circumference
176946254.08989
Area
2.4915687908063E+15
Volume
9.3556318499084E+22
Surface area
9.9662751632252E+15
Circumference
176946254.08989
Perimeter
112647484
Area
793090978220641
Diagonal
39826899.910002
Surface area
4758545869323846
Volume
2.2334925819914E+22
Space diagonal
48777791.408201
Perimeter
84485613
Area
3.4341846732566E+14
Altitude
24388895.7041
Surface area
3.4341846732566E+14
Volume
2.6321962507599E+21
Height
13275633.303334