20128899 is an odd 8-digits composite number following 20128898
and preceding 20128900 . In scientific notation, it is written as 2.0128899 × 10^7.
The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors.
There are 11502216 positive integers (up to 20128899) that are relatively prime to 20128899.
20128899 has 4 divisors, whose sum is 21087440
The reverse of 20128899 is 99882102
Previous prime number is 21
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty million one hundred twenty-eight thousand eight hundred ninety-nine
Scientific notation
2.0128899 × 10^7
Engineering notation
2.0128899 × 10^6
Prime Factorization
21 × 958519
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20128899
Product of the distinct prime numbers
The prime factorization of 20128899 is 21 × 958519.
Since it has a total of 2 prime factors.
5 , 9 , 48 , 14 , 523 , 28 , 8918 , 2820 , 38389 , 38934 , 774915 , 971037 , 1197340 , 7440969 , 10697204 , 75408595 , 903350551 , 47547203 , 372906615 , 4105764159
n×2
40257798
n×3
60386697
n×4
80515596
n×5
100644495
n÷2
10064449.5
n÷3
6709633
n÷3
5032224.75
n÷5
4025779.8
n2
405172574952201
n3
8.1556778387828E+21
n4
1.641648154934E+29
n5
3.3044569904202E+36
2 √n
4486.5241557357
3 √n
272.02365621098
4 √n
66.981521001958
5 √n
28.891095120725
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
-20128898
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 20128899 can be divided by 4 positive divisors.
The sum of these divisors (counting 20128899) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110010010010000011
3
Ternary
1101212122122210
4
Quaternary
1030302102003
5
Quinary
20123111044
6
Senary
1555233203
8
Octal
114622203
10
Decimal
20128899
12
Duodecimal
68a8803
16
Hexadecimal
1332483
20
Vigesimal
65g24j
36
Base36
bzfk3
md5
555944bea80e0a2cea37291651827247
sha1
a2afe26427e26f83d36f47db2c2307bcd355b0b3
sha256
f07f3ff75093c5d407ea3b8f21c3be9716a16e526e0a5c79893cdfac24eb77c7
sha512
d4beb854b6c96147b861ba214a1095303cc79e6c542b42cfaf232a342c8b7031c34313e19c98506e6972d186182e1ec459d8fecbe0e48a2153448dfa26dca9b9
ripemd-160
647575f5c93378e2cf79b1cb7eecf4983b8842f0
Diameter
40257798
Circumference
126473602.4465
Area
1.2728871849059E+15
Volume
3.4162423444487E+22
Surface area
5.0915487396236E+15
Circumference
126473602.4465
Perimeter
80515596
Area
405172574952201
Diagonal
28466561.961438
Surface area
2431035449713206
Volume
8.1556778387828E+21
Space diagonal
34864275.768422
Perimeter
60386697
Area
1.7544487141268E+14
Altitude
17432137.884211
Surface area
1.7544487141268E+14
Volume
9.6115585082936E+20
Height
9488853.9871461