20087890 is an even 8-digits composite number following 20087889
and preceding 20087891 . In scientific notation, it is written as 2.0087890 × 10^7.
The sum of its digits is 34. It has a total of 4 prime factors and 16 positive divisors.
There are 7955200 positive integers (up to 20087890) that are relatively prime to 20087890.
20087890 has 16 divisors, whose sum is 36518040
The reverse of 20087890 is 09878002
Previous prime number is 101
Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million eighty-seven thousand eight hundred ninety
Scientific notation
2.0087890 × 10^7
Engineering notation
2.0087890 × 10^6
Prime Factorization
2 × 5 × 101 × 19889
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20087890
Product of the distinct prime numbers
The prime factorization of 20087890 is 2 × 5 × 101 × 19889.
Since it has a total of 4 prime factors.
4 , 6 , 42 , 37 , 120 , 206 , 871 , 9340 , 38833 , 61516 , 985633 , 599114 , 3655884 , 4279349 , 58981670 , 71198268 , 660288647 , 291534275 , 3752722181 , 7884187088
n×2
40175780
n×3
60263670
n×4
80351560
n×5
100439450
n÷2
10043945
n÷3
6695963.3333333
n÷3
5021972.5
n÷5
4017578
n2
403523324652100
n3
8.1059321580457E+21
n4
1.6283107353828E+29
n5
3.270932693819E+36
2 √n
4481.9515838527
3 √n
271.8387975753
4 √n
66.947379215715
5 √n
28.879313436848
1 , 2 , 5 , 10 , 101 , 202 , 505 , 1010 , 19889 , 39778 , 99445 , 198890 , 2008789 , 4017578 , 10043945 , 20087890
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
-20087889
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 20087890 can be divided by 16 positive divisors.
The sum of these divisors (counting 20087890) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100101000010001010010
3
Ternary
1101210120101221
4
Quaternary
1030220101102
5
Quinary
20120303030
6
Senary
1554315254
8
Octal
114502122
10
Decimal
20087890
12
Duodecimal
6888b2a
16
Hexadecimal
1328452
20
Vigesimal
65ajea
36
Base36
byjwy
md5
1846c9211188b8b870677d801ae88541
sha1
1862edf6f42bf99bf3b3c2fc6a6af985d547833f
sha256
03ec5b73cc4b6f42babdcb2c65a7675a06c9c0b2d62c6775a7b7fe8720f33dd0
sha512
61bbd2b0316bab1c036d9b6550016ebc75b121fc2545a250c35e2f4d5ba1179bd537c04f176dbe77b628b090f8982d8e5908717e454df02afb47e832566d3fa8
ripemd-160
02f328d4b202728adcbd053952944ef964c7fe20
Diameter
40175780
Circumference
126215935.30024
Area
1.2677059122792E+15
Volume
3.3954049224285E+22
Surface area
5.0708236491167E+15
Circumference
126215935.30024
Perimeter
80351560
Area
403523324652100
Diagonal
28408566.477459
Surface area
2421139947912600
Volume
8.1059321580457E+21
Space diagonal
34793246.096855
Perimeter
60263670
Area
1.7473072508414E+14
Altitude
17396623.048427
Surface area
1.7473072508414E+14
Volume
9.5529326613203E+20
Height
9469522.159153