19997621 is an odd 8-digits composite number following 19997620
and preceding 19997622 . In scientific notation, it is written as 1.9997621 × 10^7.
The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors.
There are 17140812 positive integers (up to 19997621) that are relatively prime to 19997621.
19997621 has 4 divisors, whose sum is 22854432
The reverse of 19997621 is 12679991
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
nineteen million nine hundred ninety-seven thousand six hundred twenty-one
Scientific notation
1.9997621 × 10^7
Engineering notation
1.9997621 × 10^6
Prime Factorization
7 × 2856803
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
19997621
Product of the distinct prime numbers
The prime factorization of 19997621 is 7 × 2856803.
Since it has a total of 2 prime factors.
8 , 7 , 90 , 43 , 346 , 114 , 7836 , 3938 , 33857 , 61653 , 320791 , 552604 , 4721036 , 5317128 , 78459549 , 72699565 , 160387578 , 757309014 , 471082182 , 4887528810
n×2
39995242
n×3
59992863
n×4
79990484
n×5
99988105
n÷2
9998810.5
n÷3
6665873.6666667
n÷3
4999405.25
n÷5
3999524.2
n2
399904845659641
n3
7.997145539565E+21
n4
1.5992388558206E+29
n5
3.1980972527174E+36
2 √n
4471.8699668036
3 √n
271.43099856687
4 √n
66.872041742447
5 √n
28.853311648866
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
-19997620
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 19997621 can be divided by 4 positive divisors.
The sum of these divisors (counting 19997621) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100010010001110110101
3
Ternary
1101121222120122
4
Quaternary
1030102032311
5
Quinary
20104410441
6
Senary
1552341325
8
Octal
114221665
10
Decimal
19997621
12
Duodecimal
6844845
16
Hexadecimal
13123b5
20
Vigesimal
64je11
36
Base36
bwm9h
md5
f431c908c1f8c00442361bd0d7a692d4
sha1
382ab04bd2066b9756e0bdab422bb04ace85d9ab
sha256
148f18c7aeea0ea146d59ae7d7122db9ab8c6b9f24fa0f70fa97eeabff919895
sha512
c4b79ee50d6982931a9d88c281e9fc8e162722791b295ed43ddc87856a2b95664248e326d19e7b7c7f465cd46019861f1b50f208374ed7156ed6a037d8559176
ripemd-160
3daa267833f59f8a31d486e21217a23c153a49b1
Diameter
39995242
Circumference
125648758.44575
Area
1.2563381252593E+15
Volume
3.3498364902381E+22
Surface area
5.0253525010372E+15
Circumference
125648758.44575
Perimeter
79990484
Area
399904845659641
Diagonal
28280906.833397
Surface area
2399429073957846
Volume
7.997145539565E+21
Space diagonal
34636895.602506
Perimeter
59992863
Area
1.7316387771887E+14
Altitude
17318447.801253
Surface area
1.7316387771887E+14
Volume
9.4247264019369E+20
Height
9426968.9444657