19981321 is an odd 8-digits composite number following 19981320
and preceding 19981322 . In scientific notation, it is written as 1.9981321 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 19775232 positive integers (up to 19981321) that are relatively prime to 19981321.
19981321 has 4 divisors, whose sum is 20187412
The reverse of 19981321 is 12318991
Previous prime number is 97
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
nineteen million nine hundred eighty-one thousand three hundred twenty-one
Scientific notation
1.9981321 × 10^7
Engineering notation
1.9981321 × 10^6
Prime Factorization
97 × 205993
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
19981321
Product of the distinct prime numbers
The prime factorization of 19981321 is 97 × 205993.
Since it has a total of 2 prime factors.
9 , 5 , 75 , 22 , 546 , 69 , 9006 , 1516 , 92875 , 45627 , 164241 , 36458 , 7591605 , 7421136 , 3523194 , 60012841 , 272108986 , 209819093 , 2081486929 , 9032425885
n×2
39962642
n×3
59943963
n×4
79925284
n×5
99906605
n÷2
9990660.5
n÷3
6660440.3333333
n÷3
4995330.25
n÷5
3996264.2
n2
399253188905041
n3
7.9776061277853E+21
n4
1.5940310885084E+29
n5
3.1850846863467E+36
2 √n
4470.0470914745
3 √n
271.35723099379
4 √n
66.858410775867
5 √n
28.848606465246
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
-19981320
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 19981321 can be divided by 4 positive divisors.
The sum of these divisors (counting 19981321) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100001110010000001001
3
Ternary
1101121011012221
4
Quaternary
1030032100021
5
Quinary
20103400241
6
Senary
1552134041
8
Octal
114162011
10
Decimal
19981321
12
Duodecimal
6837321
16
Hexadecimal
130e409
20
Vigesimal
64hd61
36
Base36
bw9op
md5
3ceec57fc304968891711640929c2cd0
sha1
28d639eb30e69aef878b077bc9776f034863665d
sha256
24c84af87fee8c2739830047cf02c63e3ad4a7d8c48cacee4b27da144805abf6
sha512
509c855e4192bff07d3399f38bc81fbbc30a4a91f9b2fa9f53fbbe667228ee3ebf567fe2b85fb7c43ec4c6ab113f8f8a960b9d5638c60d6463d174cf91deaaa9
ripemd-160
b084e3ff5bab56fdd519b75fca12d7b509b9ae4b
Diameter
39962642
Circumference
125546342.52524
Area
1.2542908851864E+15
Volume
3.3416518405711E+22
Surface area
5.0171635407455E+15
Circumference
125546342.52524
Perimeter
79925284
Area
399253188905041
Diagonal
28257855.15233
Surface area
2395519133430246
Volume
7.9776061277853E+21
Space diagonal
34608663.174343
Perimeter
59943963
Area
1.7288170206686E+14
Altitude
17304331.587171
Surface area
1.7288170206686E+14
Volume
9.4016989843205E+20
Height
9419285.0507768