28696989 is an odd 8-digits composite number following 28696988
and preceding 28696990 . In scientific notation, it is written as 2.8696989 × 10^7.
The sum of its digits is 57. It has a total of 2 prime factors and 4 positive divisors.
There are 19131324 positive integers (up to 28696989) that are relatively prime to 28696989.
28696989 has 4 divisors, whose sum is 38262656
The reverse of 28696989 is 98969682
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 57
Digital Root 3
Name
twenty-eight million six hundred ninety-six thousand nine hundred eighty-nine
Scientific notation
2.8696989 × 10^7
Engineering notation
2.8696989 × 10^6
Prime Factorization
3 × 9565663
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28696989
Product of the distinct prime numbers
The prime factorization of 28696989 is 3 × 9565663.
Since it has a total of 2 prime factors.
1 , 4 , 17 , 79 , 326 , 858 , 1157 , 982 , 26358 , 79833 , 766686 , 813363 , 5456274 , 9915040 , 15367656 , 10694571 , 99480019 , 982385916 , 5387407303 , 5361991371
n×2
57393978
n×3
86090967
n×4
114787956
n×5
143484945
n÷2
14348494.5
n÷3
9565663
n÷3
7174247.25
n÷5
5739397.8
n2
823517177666121
n3
2.3632463388796E+22
n4
6.7818054191117E+29
n5
1.9461739551239E+37
2 √n
5356.9570653497
3 √n
306.15788127622
4 √n
73.191236260564
5 √n
31.014677260884
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
-28696988
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 28696989 can be divided by 4 positive divisors.
The sum of these divisors (counting 28696989) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101101011110000110011101
3
Ternary
1222222221212110
4
Quaternary
1231132012131
5
Quinary
24321300424
6
Senary
2503024233
8
Octal
155360635
10
Decimal
28696989
12
Duodecimal
973b079
16
Hexadecimal
1b5e19d
20
Vigesimal
8j7299
36
Base36
h32ql
md5
bdc11fbe04b7a50b37be1c6a4f2038fa
sha1
506a9e60b88790f8124cc9f6d6b5d93f4ebdf99e
sha256
ee0daeaaf1e2a38735e49c853699bc3dd964bac74204a1d0e1d58253150ecf93
sha512
8d2547b8f0fdd205d4dcf900f748c721464d048bf91b9df72d502635d715cf86812c344f19a44243d5735284ac6d85f46b2ce10cdf3bc2a0bfb7fc07a51e61ef
ripemd-160
34f931c9fef93e779c1627e8605643f2e7906caa
Diameter
57393978
Circumference
180308499.64509
Area
2.5871555154609E+15
Volume
9.899143115796E+22
Surface area
1.0348622061844E+16
Circumference
180308499.64509
Perimeter
114787956
Area
823517177666121
Diagonal
40583671.043072
Surface area
4941103065996726
Volume
2.3632463388796E+22
Space diagonal
49704642.972245
Perimeter
86090967
Area
3.5659339815586E+14
Altitude
24852321.486123
Surface area
3.5659339815586E+14
Volume
2.7851125197267E+21
Height
13527890.347691