19997718 is an even 8-digits composite number following 19997717
and preceding 19997719 . In scientific notation, it is written as 1.9997718 × 10^7.
The sum of its digits is 51. It has a total of 5 prime factors and 32 positive divisors.
There are 5765760 positive integers (up to 19997718) that are relatively prime to 19997718.
19997718 has 32 divisors, whose sum is 43372896
The reverse of 19997718 is 81779991
Previous prime number is 1633
Is Prime? no
Number parity even
Number length 8
Sum of Digits 51
Digital Root 6
Name
nineteen million nine hundred ninety-seven thousand seven hundred eighteen
Scientific notation
1.9997718 × 10^7
Engineering notation
1.9997718 × 10^6
Prime Factorization
2 × 3 × 13 × 1633 × 157
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
19997718
Product of the distinct prime numbers
The prime factorization of 19997718 is 2 × 3 × 13 × 1633 × 157.
Since it has a total of 5 prime factors.
4 , 9 , 93 , 99 , 521 , 431 , 1537 , 6003 , 3226 , 83865 , 56600 , 784529 , 8365819 , 5598305 , 32796793 , 44674317 , 65847422 , 11626930 , 7438566560 , 6953652040
n×2
39995436
n×3
59993154
n×4
79990872
n×5
99988590
n÷2
9998859
n÷3
6665906
n÷3
4999429.5
n÷5
3999543.6
n2
399908725207524
n3
7.9972619124396E+21
n4
1.5992698849711E+29
n5
3.1981748165544E+36
2 √n
4471.8808123652
3 √n
271.43143743181
4 √n
66.872122834296
5 √n
28.853339639854
1 , 2 , 3 , 6 , 13 , 26 , 39 , 78 , 157 , 314 , 471 , 942 , 1633 , 2041 , 3266 , 4082 , 4899 , 6123 , 9798 , 12246 , 21229 , 42458 , 63687 , 127374 , 256381 , 512762 , 769143 , 1538286 , 3332953 , 6665906 , 9998859 , 19997718
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-19997717
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 19997718 can be divided by 32 positive divisors.
The sum of these divisors (counting 19997718) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001100010010010000010110
3
Ternary
1101121222201020
4
Quaternary
1030102100112
5
Quinary
20104411333
6
Senary
1552342010
8
Octal
114222026
10
Decimal
19997718
12
Duodecimal
6844906
16
Hexadecimal
1312416
20
Vigesimal
64je5i
36
Base36
bwmc6
md5
1f65ad68b38d740749a71e5bc1d0351c
sha1
4b97215540332d568878c01db2eea7d9939871a3
sha256
f7c044d27b4e4785227831b1fcd7ee662fcb2a31879aadf36d221a5645f22f17
sha512
689f55297d5ba2fc335f7b28ab5e929c725db792a09b9a52493a571c6bed5d3cf0a104750a0387767fce8183da5c02ee971a28459baa42091f98b3064bc91939
ripemd-160
871431dd340aaf0f49ec9231cae77fa7408c69bc
Diameter
39995436
Circumference
125649367.91472
Area
1.2563503132184E+15
Volume
3.3498852363938E+22
Surface area
5.0254012528737E+15
Circumference
125649367.91472
Perimeter
79990872
Area
399908725207524
Diagonal
28281044.012113
Surface area
2399452351245144
Volume
7.9972619124396E+21
Space diagonal
34637063.611435
Perimeter
59993154
Area
1.7316555761238E+14
Altitude
17318531.805717
Surface area
1.7316555761238E+14
Volume
9.4248635486848E+20
Height
9427014.6707042