19991145 is an odd 8-digits composite number following 19991144
and preceding 19991146 . In scientific notation, it is written as 1.9991145 × 10^7.
The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors.
There are 10563264 positive integers (up to 19991145) that are relatively prime to 19991145.
19991145 has 16 divisors, whose sum is 32281920
The reverse of 19991145 is 54119991
Previous prime number is 109
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
nineteen million nine hundred ninety-one thousand one hundred forty-five
Scientific notation
1.9991145 × 10^7
Engineering notation
1.9991145 × 10^6
Prime Factorization
3 × 5 × 109 × 12227
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
19991145
Product of the distinct prime numbers
The prime factorization of 19991145 is 3 × 5 × 109 × 12227.
Since it has a total of 4 prime factors.
4 , 3 , 18 , 37 , 585 , 260 , 5456 , 8998 , 68467 , 21509 , 818244 , 195094 , 6291575 , 3900771 , 86957562 , 82211536 , 928051194 , 428022109 , 8518862719 , 3723867580
n×2
39982290
n×3
59973435
n×4
79964580
n×5
99955725
n÷2
9995572.5
n÷3
6663715
n÷3
4997786.25
n÷5
3998229
n2
399645878411025
n3
7.9893787039672E+21
n4
1.5971682813092E+29
n5
3.1929222701053E+36
2 √n
4471.1458262955
3 √n
271.40169546581
4 √n
66.866627149091
5 √n
28.851442643996
1 , 3 , 5 , 15 , 109 , 327 , 545 , 1635 , 12227 , 36681 , 61135 , 183405 , 1332743 , 3998229 , 6663715 , 19991145
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-19991144
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 19991145 can be divided by 16 positive divisors.
The sum of these divisors (counting 19991145) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100010000101001101001
3
Ternary
1101121122200210
4
Quaternary
1030100221221
5
Quinary
20104204040
6
Senary
1552251333
8
Octal
114205151
10
Decimal
19991145
12
Duodecimal
6840b49
16
Hexadecimal
1310a69
20
Vigesimal
64ihh5
36
Base36
bwh9l
md5
f10115f6d6c2cdc01939b707c82ba9c9
sha1
2d3f9eb2e0e43be66707f25783490c56292fb965
sha256
c4261c7670ec7b20703b57f05e5ce122a3c1551d96ec51f747b61464951dca32
sha512
6835a0d9880126aacb9e129be72b942672904f6535d50e59e9c37f5d3f58529055ef9af5a76ecb62f7d599c7543b4821cde882e187b78541be090a7268535c60
ripemd-160
f7025902daa2bf3a3c0bc48d8146fc635f338a35
Diameter
39982290
Circumference
125608068.5377
Area
1.2555245556535E+15
Volume
3.3465831257507E+22
Surface area
5.0220982226141E+15
Circumference
125608068.5377
Perimeter
79964580
Area
399645878411025
Diagonal
28271748.386367
Surface area
2397875270466150
Volume
7.9893787039672E+21
Space diagonal
34625678.841477
Perimeter
59973435
Area
1.7305174161085E+14
Altitude
17312839.420738
Surface area
1.7305174161085E+14
Volume
9.4155730984043E+20
Height
9423916.128789