20191972 is an even 8-digits composite number following 20191971
and preceding 20191973 . In scientific notation, it is written as 2.0191972 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 6 positive divisors.
There are 10095984 positive integers (up to 20191972) that are relatively prime to 20191972.
20191972 has 6 divisors, whose sum is 35335958
The reverse of 20191972 is 27919102
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million one hundred ninety-one thousand nine hundred seventy-two
Scientific notation
2.0191972 × 10^7
Engineering notation
2.0191972 × 10^6
Prime Factorization
2 × 2 × 5047993
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
10095986
Product of the distinct prime numbers
The prime factorization of 20191972 is 2 × 2 × 5047993.
Since it has a total of 3 prime factors.
10 , 7 , 31 , 87 , 82 , 241 , 5285 , 7501 , 81716 , 93100 , 405828 , 651692 , 948720 , 5069594 , 9722941 , 48244414 , 335760630 , 918541745 , 1430928010 , 2926209312
n×2
40383944
n×3
60575916
n×4
80767888
n×5
100959860
n÷2
10095986
n÷3
6730657.3333333
n÷3
5047993
n÷5
4038394.4
n2
407715733248784
n3
8.2325846697189E+21
n4
1.6623211913859E+29
n5
3.3565542951471E+36
2 √n
4493.5478188176
3 √n
272.30748459468
4 √n
67.03393035484
5 √n
28.909178259344
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20191971
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20191972 can be divided by 6 positive divisors.
The sum of these divisors (counting 20191972) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1001101000001101011100100
3
Ternary
1101222212011211
4
Quaternary
1031001223210
5
Quinary
20132120342
6
Senary
2000441204
8
Octal
115015344
10
Decimal
20191972
12
Duodecimal
6919204
16
Hexadecimal
1341ae4
20
Vigesimal
663jic
36
Base36
c0s84
md5
e1404884aa2f5cb29658f833c2217d93
sha1
31c29b7902e4ba40e2e447cd16f261b69862d13b
sha256
6b56774e181ae0123cfb8c444d2bceb5372a9c95de338c41f832de3807942467
sha512
28d6e9d61c00f1848bb7877980e759e96fff07acca8e5a81bb3c5e6eb6b7a6778e22e0f61b15ec834ae94d3419ec8eba2781661d091909ce68450ac4bffa43c5
ripemd-160
a5fb128f2049c195ffe5614d9bf747ebb108b5cc
Diameter
40383944
Circumference
126869901.79338
Area
1.2808767523274E+15
Volume
3.4484570024593E+22
Surface area
5.1235070093094E+15
Circumference
126869901.79338
Perimeter
80767888
Area
407715733248784
Diagonal
28555760.653458
Surface area
2446294399492704
Volume
8.2325846697189E+21
Space diagonal
34973521.409008
Perimeter
60575916
Area
1.7654609125802E+14
Altitude
17486760.704504
Surface area
1.7654609125802E+14
Volume
9.7021940777511E+20
Height
9518586.8844859