28711982 is an even 8-digits composite number following 28711981
and preceding 28711983 . In scientific notation, it is written as 2.8711982 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 13251672 positive integers (up to 28711982) that are relatively prime to 28711982.
28711982 has 8 divisors, whose sum is 46380936
The reverse of 28711982 is 28911782
Previous prime number is 13
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-eight million seven hundred eleven thousand nine hundred eighty-two
Scientific notation
2.8711982 × 10^7
Engineering notation
2.8711982 × 10^6
Prime Factorization
2 × 13 × 1104307
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28711982
Product of the distinct prime numbers
The prime factorization of 28711982 is 2 × 13 × 1104307.
Since it has a total of 3 prime factors.
9 , 8 , 6 , 19 , 538 , 638 , 5803 , 7861 , 99197 , 20479 , 473007 , 646651 , 5232529 , 1443961 , 94735084 , 32733005 , 233419820 , 570162322 , 6185762597 , 6626345957
n×2
57423964
n×3
86135946
n×4
114847928
n×5
143559910
n÷2
14355991
n÷3
9570660.6666667
n÷3
7177995.5
n÷5
5742396.4
n2
824377910368324
n3
2.3669523723693E+22
n4
6.7959893910324E+29
n5
1.9512632506751E+37
2 √n
5358.3562778151
3 √n
306.21119030624
4 √n
73.200794243062
5 √n
31.017917363242
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28711981
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28711982 can be divided by 8 positive divisors.
The sum of these divisors (counting 28711982) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101101100001110000101110
3
Ternary
2000000201102202
4
Quaternary
1231201300232
5
Quinary
24322240412
6
Senary
2503221502
8
Octal
155416056
10
Decimal
28711982
12
Duodecimal
9747892
16
Hexadecimal
1b61c2e
20
Vigesimal
8j8jj2
36
Base36
h3eb2
md5
41b413d6131852cc12ed0e8a22bba763
sha1
dcc36ead003fa4e17dc8470811ca02ef0e3df085
sha256
408380a0186dbd4f59d0d8b0deababf243f64fbd9ed6da92637275841cc111d2
sha512
d4c2e3ee40a5ad2d1399ee438a80b676f7691915532bec8e7b65d55715f8191eefb27fa0b05c5721ce81e49e6b3e659aa57aadee47d6336c23d25cb64409e1ad
ripemd-160
2299014c8f8b1e2d0af8d9edeeff5650794cdfd0
Diameter
57423964
Circumference
180402703.4424
Area
2.5898595869948E+15
Volume
9.9146669125764E+22
Surface area
1.0359438347979E+16
Circumference
180402703.4424
Perimeter
114847928
Area
824377910368324
Diagonal
40604874.347012
Surface area
4946267462209944
Volume
2.3669523723693E+22
Space diagonal
49730611.610003
Perimeter
86135946
Area
3.5696610634885E+14
Altitude
24865305.805002
Surface area
3.5696610634885E+14
Volume
2.7894801220799E+21
Height
13534958.115671