20108891 is an odd 8-digits composite number following 20108890
and preceding 20108892 . In scientific notation, it is written as 2.0108891 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 18156640 positive integers (up to 20108891) that are relatively prime to 20108891.
20108891 has 8 divisors, whose sum is 22086000
The reverse of 20108891 is 19880102
Previous prime number is 149
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million one hundred eight thousand eight hundred ninety-one
Scientific notation
2.0108891 × 10^7
Engineering notation
2.0108891 × 10^6
Prime Factorization
11 × 149 × 12269
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20108891
Product of the distinct prime numbers
The prime factorization of 20108891 is 11 × 149 × 12269.
Since it has a total of 3 prime factors.
9 , 3 , 29 , 96 , 952 , 304 , 9278 , 3680 , 97152 , 71385 , 901009 , 228388 , 81456 , 1553681 , 76053291 , 54033444 , 206743096 , 580537833 , 9053165501 , 8991678804
n×2
40217782
n×3
60326673
n×4
80435564
n×5
100544455
n÷2
10054445.5
n÷3
6702963.6666667
n÷3
5027222.75
n÷5
4021778.2
n2
404367497249881
n3
8.1313819261407E+21
n4
1.6351307283213E+29
n5
3.2880665586564E+36
2 √n
4484.2938128539
3 √n
271.93349639267
4 √n
66.96486999057
5 √n
28.885349322102
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
-20108890
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 20108891 can be divided by 8 positive divisors.
The sum of these divisors (counting 20108891) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100101101011001011011
3
Ternary
1101211122012202
4
Quaternary
1030231121123
5
Quinary
20121441031
6
Senary
1555000415
8
Octal
114553133
10
Decimal
20108891
12
Duodecimal
689910b
16
Hexadecimal
132d65b
20
Vigesimal
65dc4b
36
Base36
bz04b
md5
fb374eaa2c0b2b083a8b1be674194a9b
sha1
61c4ed0408c97fb064152a16dd32c977087ed65c
sha256
306e413a9b28f396f171482453178796696a5c4a3452af7801c4894537bfa243
sha512
c402d64a360abe7216463dcbc05a0888c9e99b5c21e49d1c5f2f360252b00ad7afa0d29c0f08a0598b76c3f958071eb5cc963e9d3a4e20678f96ef2dcd7f8031
ripemd-160
caa4aadfde10e361e36b7875d54205e92cea26ed
Diameter
40217782
Circumference
126347888.47488
Area
1.2703579587107E+15
Volume
3.4060652963595E+22
Surface area
5.0814318348429E+15
Circumference
126347888.47488
Perimeter
80435564
Area
404367497249881
Diagonal
28438266.376482
Surface area
2426204983499286
Volume
8.1313819261407E+21
Space diagonal
34829620.895865
Perimeter
60326673
Area
1.7509626254157E+14
Altitude
17414810.447932
Surface area
1.7509626254157E+14
Volume
9.582925500653E+20
Height
9479422.1254941