28432881 is an odd 8-digits composite number following 28432880
and preceding 28432882 . In scientific notation, it is written as 2.8432881 × 10^7.
The sum of its digits is 36. It has a total of 2 prime factors and 4 positive divisors.
There are 18955248 positive integers (up to 28432881) that are relatively prime to 28432881.
28432881 has 4 divisors, whose sum is 31592100
The reverse of 28432881 is 18823482
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty-eight million four hundred thirty-two thousand eight hundred eighty-one
Scientific notation
2.8432881 × 10^7
Engineering notation
2.8432881 × 10^6
Prime Factorization
9 × 3159209
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28432881
Product of the distinct prime numbers
The prime factorization of 28432881 is 9 × 3159209.
Since it has a total of 2 prime factors.
6 , 4 , 21 , 33 , 444 , 675 , 9697 , 4517 , 70918 , 92861 , 752799 , 311827 , 4674680 , 1299759 , 56543024 , 26614695 , 642811406 , 370334101 , 383725819 , 6042525872
n×2
56865762
n×3
85298643
n×4
113731524
n×5
142164405
n÷2
14216440.5
n÷3
9477627
n÷3
7108220.25
n÷5
5686576.2
n2
808428721960161
n3
2.2985957648475E+22
n4
6.5355699849014E+29
n5
1.8582508364787E+37
2 √n
5332.2491502179
3 √n
305.21576061735
4 √n
73.022251062385
5 √n
30.957378241752
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
-28432880
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 28432881 can be divided by 4 positive divisors.
The sum of these divisors (counting 28432881) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101100011101100111110001
3
Ternary
1222111112120200
4
Quaternary
1230131213301
5
Quinary
24234323011
6
Senary
2453225413
8
Octal
154354761
10
Decimal
28432881
12
Duodecimal
9632269
16
Hexadecimal
1b1d9f1
20
Vigesimal
8he241
36
Base36
gxey9
md5
85cb110aa94d119f238668f7bd98faa1
sha1
93240e08b005801d5b3e89ecf0b66a8e5589e06d
sha256
17ad79e2ed5d4dfc65baa24b18db24c186810ef6caef8128a434da606260b7e0
sha512
5c5ba483cedc439a64cfbab728fa85f84756eb5a68fa5f4718a22eb2df8c9300236b2dcc50874d56a457de5d5d34744841077897506831b8a55ca4af8789f575
ripemd-160
21b2c01e47e9d4cf44b1d26266af96477306bc87
Diameter
56865762
Circumference
178649060.13999
Area
2.539753733861E+15
Volume
9.6283354245568E+22
Surface area
1.0159014935444E+16
Circumference
178649060.13999
Perimeter
113731524
Area
808428721960161
Diagonal
40210165.92754
Surface area
4850572331760966
Volume
2.2985957648475E+22
Space diagonal
49247194.49756
Perimeter
85298643
Area
3.5005990518324E+14
Altitude
24623597.24878
Surface area
3.5005990518324E+14
Volume
2.7089210875506E+21
Height
13403388.642513