19938991 is an odd 8-digits composite number following 19938990
and preceding 19938992 . In scientific notation, it is written as 1.9938991 × 10^7.
The sum of its digits is 49. It has a total of 2 prime factors and 4 positive divisors.
There are 19600984 positive integers (up to 19938991) that are relatively prime to 19938991.
19938991 has 4 divisors, whose sum is 20277000
The reverse of 19938991 is 19983991
Previous prime number is 59
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 49
Digital Root 4
Name
nineteen million nine hundred thirty-eight thousand nine hundred ninety-one
Scientific notation
1.9938991 × 10^7
Engineering notation
1.9938991 × 10^6
Prime Factorization
59 × 337949
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
19938991
Product of the distinct prime numbers
The prime factorization of 19938991 is 59 × 337949.
Since it has a total of 2 prime factors.
1 , 8 , 30 , 59 , 269 , 174 , 4370 , 7608 , 17735 , 42173 , 649858 , 594185 , 4188815 , 2169092 , 59701713 , 5411915 , 2789433 , 563007220 , 9582027385 , 5937727414
n×2
39877982
n×3
59816973
n×4
79755964
n×5
99694955
n÷2
9969495.5
n÷3
6646330.3333333
n÷3
4984747.75
n÷5
3987798.2
n2
397563362098081
n3
7.9270122988034E+21
n4
1.5805662688273E+29
n5
3.1514896609051E+36
2 √n
4465.3097316984
3 √n
271.16547402761
4 √n
66.822973083352
5 √n
28.836373063553
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
-19938990
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 19938991 can be divided by 4 positive divisors.
The sum of these divisors (counting 19938991) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100000011111010101111
3
Ternary
1101112000011011
4
Quaternary
1030003322233
5
Quinary
20101021431
6
Senary
1551210051
8
Octal
114037257
10
Decimal
19938991
12
Duodecimal
6816927
16
Hexadecimal
1303eaf
20
Vigesimal
64c79b
36
Base36
bvd0v
md5
71f284754c89c4ba02b711cdfc0da366
sha1
f8cd8c16625d88d7ff2d8d90fd7977136d2e7ecc
sha256
a5e298fd97f821ed724c070491bac91a3f54a9b9a4a39d3a12efd14489a51c54
sha512
2d726eb4f0efce2c4d6ab22ac4ee107348c1733030220cce3d8c03a3c125c948ce8f82df89a98a40979b0980105f157f0de9b199238d049b7e4b3f4dd68517aa
ripemd-160
9c3ec871c21ddba6c43cd867e203cd9a9c0146ba
Diameter
39877982
Circumference
125280375.29119
Area
1.2489821377038E+15
Volume
3.3204591470449E+22
Surface area
4.9959285508152E+15
Circumference
125280375.29119
Perimeter
79755964
Area
397563362098081
Diagonal
28197991.492235
Surface area
2385380172588486
Volume
7.9270122988034E+21
Space diagonal
34535345.463659
Perimeter
59816973
Area
1.7214998559544E+14
Altitude
17267672.731829
Surface area
1.7214998559544E+14
Volume
9.3420735850551E+20
Height
9399330.4974117