20007921 is an odd 8-digits composite number following 20007920
and preceding 20007922 . In scientific notation, it is written as 2.0007921 × 10^7.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 13264560 positive integers (up to 20007921) that are relatively prime to 20007921.
20007921 has 8 divisors, whose sum is 26825344
The reverse of 20007921 is 12970002
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million seven thousand nine hundred twenty-one
Scientific notation
2.0007921 × 10^7
Engineering notation
2.0007921 × 10^6
Prime Factorization
181 × 3 × 36847
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20007921
Product of the distinct prime numbers
The prime factorization of 20007921 is 181 × 3 × 36847.
Since it has a total of 3 prime factors.
3 , 1 , 37 , 89 , 638 , 421 , 9623 , 1669 , 9864 , 80681 , 513934 , 407894 , 5929878 , 2136526 , 62434314 , 58333225 , 164734153 , 830174775 , 9189099271 , 4988725411
n×2
40015842
n×3
60023763
n×4
80031684
n×5
100039605
n÷2
10003960.5
n÷3
6669307
n÷3
5001980.25
n÷5
4001584.2
n2
400316902742241
n3
8.0095089650314E+21
n4
1.6025362262114E+29
n5
3.2063418213676E+36
2 √n
4473.0214620545
3 √n
271.4775917663
4 √n
66.880650879417
5 √n
28.856283281348
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
-20007920
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 20007921 can be divided by 8 positive divisors.
The sum of these divisors (counting 20007921) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100010100101111110001
3
Ternary
1101122111201010
4
Quaternary
1030110233301
5
Quinary
20110223141
6
Senary
1552501133
8
Octal
114245761
10
Decimal
20007921
12
Duodecimal
684a7a9
16
Hexadecimal
1314bf1
20
Vigesimal
650jg1
36
Base36
bwu7l
md5
511f02fcb92acdc876aac4a4c1893a50
sha1
f67ba0f9e67b6b9924a0e5c7efa0556099a8718e
sha256
8b542978847692a118fe5f72b4157727e6f731cd2ae56a44021aefb248438bbe
sha512
3bcb962dc0b18f60a88eb6819f68b2a4c83a8c2b15db9ba31ff6bb39c083a00eb4ab0479ca34b1bf7a526d791c03a1dbbd1a152e932bda113efa5acf3e0c62ca
ripemd-160
fa1140dad4880744a3fc99920a2184a4355cea02
Diameter
40015842
Circumference
125713475.25441
Area
1.2576326407628E+15
Volume
3.3550152697872E+22
Surface area
5.0305305630514E+15
Circumference
125713475.25441
Perimeter
80031684
Area
400316902742241
Diagonal
28295473.233089
Surface area
2401901416453446
Volume
8.0095089650314E+21
Space diagonal
34654735.725824
Perimeter
60023763
Area
1.7334230366954E+14
Altitude
17327367.862912
Surface area
1.7334230366954E+14
Volume
9.4392968385803E+20
Height
9431824.4110298