28931620 is an even 8-digits composite number following 28931619
and preceding 28931621 . In scientific notation, it is written as 2.8931620 × 10^7.
The sum of its digits is 31. It has a total of 4 prime factors and 12 positive divisors.
There are 10891776 positive integers (up to 28931620) that are relatively prime to 28931620.
28931620 has 12 divisors, whose sum is 51226588
The reverse of 28931620 is 02613982
Previous prime number is 85
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-eight million nine hundred thirty-one thousand six hundred twenty
Scientific notation
2.8931620 × 10^7
Engineering notation
2.8931620 × 10^6
Prime Factorization
2 × 2 × 85 × 85093
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
14465810
Product of the distinct prime numbers
The prime factorization of 28931620 is 2 × 2 × 85 × 85093.
Since it has a total of 4 prime factors.
2 , 3 , 86 , 60 , 575 , 552 , 3887 , 611 , 29244 , 35120 , 445260 , 949929 , 3418374 , 9320386 , 91846465 , 56827544 , 105175155 , 962973458 , 6417043183 , 7784661582
n×2
57863240
n×3
86794860
n×4
115726480
n×5
144658100
n÷2
14465810
n÷3
9643873.3333333
n÷3
7232905
n÷5
5786324
n2
837038635824400
n3
2.421688373699E+22
n4
7.0063367786277E+29
n5
2.0270467327128E+37
2 √n
5378.8121365223
3 √n
306.99001548446
4 √n
73.340385440236
5 √n
31.065228359909
1 , 2 , 4 , 85 , 170 , 340 , 85093 , 170186 , 340372 , 7232905 , 14465810 , 28931620
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28931619
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28931620 can be divided by 12 positive divisors.
The sum of these divisors (counting 28931620) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1101110010111011000100100
3
Ternary
2000102212201111
4
Quaternary
1232113120210
5
Quinary
24401302440
6
Senary
2512034404
8
Octal
156273044
10
Decimal
28931620
12
Duodecimal
9832a04
16
Hexadecimal
1b97624
20
Vigesimal
90g910
36
Base36
h83s4
md5
adefdcab71c8360a95dc29581c760121
sha1
7636e802a3f778da641d3ab5dd926666975e9634
sha256
892d4e27e5c94303c2350894f1482f4e4537c7ad298f6466691f7854800d108a
sha512
b1540eb77ccd85239454c9a3cd3c61560809a3db38d7f53c6e0bc75e08b45bbb395ee3e2ba114e47a77b968e292befcd88b0398a37f91ce929a4ba82d8791c61
ripemd-160
e70187348c0b599d082a35ec899e4597c7f4d96b
Diameter
57863240
Circumference
181782729.6969
Area
2.6296344290768E+15
Volume
1.0143944538795E+23
Surface area
1.0518537716307E+16
Circumference
181782729.6969
Perimeter
115726480
Area
837038635824400
Diagonal
40915489.385425
Surface area
5022231814946400
Volume
2.421688373699E+22
Space diagonal
50111035.785276
Perimeter
86794860
Area
3.624483612865E+14
Altitude
25055517.892638
Surface area
3.624483612865E+14
Volume
2.853987118272E+21
Height
13638496.461808