20191889 is an odd 8-digits composite number following 20191888
and preceding 20191890 . In scientific notation, it is written as 2.0191889 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 19129140 positive integers (up to 20191889) that are relatively prime to 20191889.
20191889 has 4 divisors, whose sum is 21254640
The reverse of 20191889 is 98819102
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million one hundred ninety-one thousand eight hundred eighty-nine
Scientific notation
2.0191889 × 10^7
Engineering notation
2.0191889 × 10^6
Prime Factorization
19 × 1062731
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20191889
Product of the distinct prime numbers
The prime factorization of 20191889 is 19 × 1062731.
Since it has a total of 2 prime factors.
9 , 3 , 45 , 65 , 22 , 713 , 6843 , 4655 , 77075 , 55678 , 435057 , 634874 , 5468247 , 8737982 , 66602075 , 75771624 , 93951727 , 29448173 , 8801085347 , 3099027779
n×2
40383778
n×3
60575667
n×4
80767556
n×5
100959445
n÷2
10095944.5
n÷3
6730629.6666667
n÷3
5047972.25
n÷5
4038377.8
n2
407712381388321
n3
8.2324831489186E+21
n4
1.6622938593734E+29
n5
3.3564853093848E+36
2 √n
4493.5385833439
3 √n
272.30711148349
4 √n
67.033861468245
5 √n
28.909154492812
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
-20191888
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 20191889 can be divided by 4 positive divisors.
The sum of these divisors (counting 20191889) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101000001101010010001
3
Ternary
1101222212001202
4
Quaternary
1031001222101
5
Quinary
20132120024
6
Senary
2000440545
8
Octal
115015221
10
Decimal
20191889
12
Duodecimal
6919155
16
Hexadecimal
1341a91
20
Vigesimal
663je9
36
Base36
c0s5t
md5
00b133cb14a311d06b139ab38e6ab556
sha1
a2ce9c39b8e2f36b410bced4362f8ca88d73d0bc
sha256
4b5d8ed13d9fb94a23f9b47fc6adc155b6b2bfd11a4ffb6df9f3f64c4b6d04db
sha512
26605afb47750d2be3523a27592941a8879512ee15d6ee4b374bfda987000a35545d8467e13ca01e21f783a1108c4bf4f14663ed987861095b8f8ba4eb81a504
ripemd-160
7703e51f43c50e0ab48f86074a2131f401348e34
Diameter
40383778
Circumference
126869380.289
Area
1.2808662221471E+15
Volume
3.4484144775259E+22
Surface area
5.1234648885886E+15
Circumference
126869380.289
Perimeter
80767556
Area
407712381388321
Diagonal
28555643.273732
Surface area
2446274288329926
Volume
8.2324831489186E+21
Space diagonal
34973377.648791
Perimeter
60575667
Area
1.7654463985987E+14
Altitude
17486688.824396
Surface area
1.7654463985987E+14
Volume
9.7020744343406E+20
Height
9518547.7579107