20007891 is an odd 8-digits composite number following 20007890
and preceding 20007892 . In scientific notation, it is written as 2.0007891 × 10^7.
The sum of its digits is 27. It has a total of 5 prime factors and 24 positive divisors.
There are 13219200 positive integers (up to 20007891) that are relatively prime to 20007891.
20007891 has 24 divisors, whose sum is 30239664
The reverse of 20007891 is 19870002
Previous prime number is 137
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million seven thousand eight hundred ninety-one
Scientific notation
2.0007891 × 10^7
Engineering notation
2.0007891 × 10^6
Prime Factorization
9 × 9 × 3 × 137 × 601
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
2223099
Product of the distinct prime numbers
The prime factorization of 20007891 is 9 × 9 × 3 × 137 × 601.
Since it has a total of 5 prime factors.
2 , 4 , 30 , 43 , 759 , 149 , 5641 , 1890 , 7161 , 671 , 106881 , 627994 , 7088523 , 9328676 , 39566152 , 75707700 , 497036056 , 758325184 , 9876686897 , 6643015263
n×2
40015782
n×3
60023673
n×4
80031564
n×5
100039455
n÷2
10003945.5
n÷3
6669297
n÷3
5001972.75
n÷5
4001578.2
n2
400315702267881
n3
8.0094729365642E+21
n4
1.6025266148223E+29
n5
3.2063177833963E+36
2 √n
4473.0181086153
3 √n
271.47745608118
4 √n
66.880625809088
5 √n
28.856274627885
1 , 3 , 9 , 27 , 81 , 137 , 243 , 411 , 601 , 1233 , 1803 , 3699 , 5409 , 11097 , 16227 , 33291 , 48681 , 82337 , 146043 , 247011 , 741033 , 2223099 , 6669297 , 20007891
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20007890
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20007891 can be divided by 24 positive divisors.
The sum of these divisors (counting 20007891) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1001100010100101111010011
3
Ternary
1101122111200000
4
Quaternary
1030110233103
5
Quinary
20110223031
6
Senary
1552501043
8
Octal
114245723
10
Decimal
20007891
12
Duodecimal
684a783
16
Hexadecimal
1314bd3
20
Vigesimal
650jeb
36
Base36
bwu6r
md5
9ae12d269a734debcacb28896df61077
sha1
a37cc6fc88ee3be7789559d8bf396c157e248871
sha256
7a539a454a72b494223df29a79fb5d3719d4cf7a410e8a77788adbc1b20afeb4
sha512
0342029ebaa310d71eab16e2b32b46cb14141982fbf378ee0b1d563e0ca3920d45812bd9f16b95de8dc88d7670ca150cc03de12995ad89c90e4110f3f717c7c0
ripemd-160
4f029a106874a40f2db51e32d1fb1bb240061834
Diameter
40015782
Circumference
125713286.75885
Area
1.2576288693614E+15
Volume
3.3550001782182E+22
Surface area
5.0305154774457E+15
Circumference
125713286.75885
Perimeter
80031564
Area
400315702267881
Diagonal
28295430.806683
Surface area
2401894213607286
Volume
8.0094729365642E+21
Space diagonal
34654683.7643
Perimeter
60023673
Area
1.733417838489E+14
Altitude
17327341.88215
Surface area
1.733417838489E+14
Volume
9.4392543786245E+20
Height
9431810.2688942