20802913 is an odd 8-digits composite number following 20802912
and preceding 20802914 . In scientific notation, it is written as 2.0802913 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 20791188 positive integers (up to 20802913) that are relatively prime to 20802913.
20802913 has 4 divisors, whose sum is 20814640
The reverse of 20802913 is 31920802
Previous prime number is 2179
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million eight hundred two thousand nine hundred thirteen
Scientific notation
2.0802913 × 10^7
Engineering notation
2.0802913 × 10^6
Prime Factorization
2179 × 9547
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20802913
Product of the distinct prime numbers
The prime factorization of 20802913 is 2179 × 9547.
Since it has a total of 2 prime factors.
1 , 4 , 72 , 59 , 540 , 573 , 6165 , 6132 , 85919 , 348 , 289302 , 604995 , 6767140 , 9330415 , 34206785 , 91733824 , 384936076 , 482000460 , 5496343334 , 2244125098
n×2
41605826
n×3
62408739
n×4
83211652
n×5
104014565
n÷2
10401456.5
n÷3
6934304.3333333
n÷3
5200728.25
n÷5
4160582.6
n2
432761189285569
n3
9.0026933704842E+21
n4
1.8728224695186E+29
n5
3.8960162897841E+36
2 √n
4561.0210479672
3 √n
275.02661119891
4 √n
67.535331849094
5 √n
29.082037530265
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
-20802912
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 20802913 can be divided by 4 positive divisors.
The sum of these divisors (counting 20802913) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111010110110101100001
3
Ternary
1110010220020021
4
Quaternary
1033112311201
5
Quinary
20311143123
6
Senary
2021513441
8
Octal
117266541
10
Decimal
20802913
12
Duodecimal
6b72881
16
Hexadecimal
13d6d61
20
Vigesimal
6a075d
36
Base36
cdvmp
md5
59cd5b53cff00de07ae89de4e1d6c1f7
sha1
d677676534fefb546ad91df9ba81bb8c7038b4f0
sha256
feffb7858273b30b0bbe0b030901f8bfe7ef72d8819ffdda94c59c739730578d
sha512
5f10deba38094a169479703c45d05b5b2a1387e88d1eae6d0bb3e43e571caee95720244dda4a6f732d3ff49869f10dc2340e85b391ab36c02351f68143426a6f
ripemd-160
f56225096340616d797c59b7ed63dacab01ed60e
Diameter
41605826
Circumference
130708557.30814
Area
1.3595593730183E+15
Volume
3.771039380698E+22
Surface area
5.4382374920733E+15
Circumference
130708557.30814
Perimeter
83211652
Area
432761189285569
Diagonal
29419761.701468
Surface area
2596567135713414
Volume
9.0026933704842E+21
Space diagonal
36031702.261435
Perimeter
62408739
Area
1.8739109184663E+14
Altitude
18015851.130718
Surface area
1.8739109184663E+14
Volume
1.0609775885354E+21
Height
9806587.2338225