28963721 is an odd 8-digits composite number following 28963720
and preceding 28963722 . In scientific notation, it is written as 2.8963721 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 27964944 positive integers (up to 28963721) that are relatively prime to 28963721.
28963721 has 4 divisors, whose sum is 29962500
The reverse of 28963721 is 12736982
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-eight million nine hundred sixty-three thousand seven hundred twenty-one
Scientific notation
2.8963721 × 10^7
Engineering notation
2.8963721 × 10^6
Prime Factorization
29 × 998749
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28963721
Product of the distinct prime numbers
The prime factorization of 28963721 is 29 × 998749.
Since it has a total of 2 prime factors.
8 , 5 , 8 , 18 , 263 , 908 , 3098 , 5063 , 50712 , 45474 , 785956 , 947578 , 2527850 , 1011248 , 45857774 , 2444057 , 881636924 , 214417444 , 390805964 , 6810397942
n×2
57927442
n×3
86891163
n×4
115854884
n×5
144818605
n÷2
14481860.5
n÷3
9654573.6666667
n÷3
7240930.25
n÷5
5792744.2
n2
838897134165841
n3
2.4297582541679E+22
n4
7.0374840171166E+29
n5
2.0383172361372E+37
2 √n
5381.7953324146
3 √n
307.10351349558
4 √n
73.360720637236
5 √n
31.07211897027
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
-28963720
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 28963721 can be divided by 4 positive divisors.
The sum of these divisors (counting 28963721) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101110011111001110001001
3
Ternary
2000111111202102
4
Quaternary
1232133032021
5
Quinary
24403314341
6
Senary
2512443145
8
Octal
156371611
10
Decimal
28963721
12
Duodecimal
98494b5
16
Hexadecimal
1b9f389
20
Vigesimal
910961
36
Base36
h8sjt
md5
14eabbbc2c04ce5e06416eb2994dff78
sha1
e22e3016e08fa57fca9ae2f2df54458656d76fb0
sha256
19a833b257587b9743763d604082534db8d245252e5f1d6194cff39c28b86758
sha512
02ec7c46d98f91238fbf815f5e32e28496f6bb7593827d77aa81f526f1b8e5a9ef306502d9a6b54d891683b282365a3824d6a7d6b3d8f1ea0eda430a837bcaaa
ripemd-160
af33ec5735558a9608281e1d1a1bfa6b24e4b123
Diameter
57927442
Circumference
181984426.22845
Area
2.6354730738129E+15
Volume
1.0177747575057E+23
Surface area
1.0541892295252E+16
Circumference
181984426.22845
Perimeter
115854884
Area
838897134165841
Diagonal
40960887.05499
Surface area
5033382804995046
Volume
2.4297582541679E+22
Space diagonal
50166636.34825
Perimeter
86891163
Area
3.6325311467479E+14
Altitude
25083318.174125
Surface area
3.6325311467479E+14
Volume
2.8634975636102E+21
Height
13653629.01833