20231987 is an odd 8-digits prime number following 20231986
and preceding 20231988 . In scientific notation, it is written as 2.0231987 × 10^7.
The sum of its digits is 32. It has a total of 1 prime factors and 2 positive divisors.
There are 20231986 positive integers (up to 20231987) that are relatively prime to 20231987.
20231987 has 2 divisors, whose sum is 20231988
The reverse of 20231987 is 78913202
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million two hundred thirty-one thousand nine hundred eighty-seven
Scientific notation
2.0231987 × 10^7
Engineering notation
2.0231987 × 10^6
Prime Factorization
20231987
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20231987
Product of the distinct prime numbers
The prime factorization of 20231987 is 20231987.
Since it has a total of 1 prime factors.
5 , 10 , 4 , 28 , 487 , 730 , 5746 , 491 , 99027 , 21347 , 870601 , 383229 , 9768257 , 5653256 , 2740066 , 99764268 , 794837194 , 834165579 , 3262321917 , 4958312829
n×2
40463974
n×3
60695961
n×4
80927948
n×5
101159935
n÷2
10115993.5
n÷3
6743995.6666667
n÷3
5057996.75
n÷5
4046397.4
n2
409333297968169
n3
8.2816259631591E+21
n4
1.675537488255E+29
n5
3.3899452680387E+36
2 √n
4497.9981102708
3 √n
272.48724570667
4 √n
67.067116460087
5 √n
28.920627214116
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20231988
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10115994
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4497.9982214314
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999011466
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20231987 can be divided by 2 positive divisors.
The sum of these divisors (counting 20231987) is 20231988, the average is 10115994.
Base
System
Value
2
Binary
1001101001011011100110011
3
Ternary
1102001220001212
4
Quaternary
1031023130303
5
Quinary
20134410422
6
Senary
2001350335
8
Octal
115133463
10
Decimal
20231987
12
Duodecimal
69383ab
16
Hexadecimal
134b733
20
Vigesimal
668jj7
36
Base36
c1n3n
md5
3cd3b023d18b92a45576a94c3c7bb241
sha1
65dd01c436f4b88d891d41fcebcf9bc1b79737bd
sha256
cc16fb2bacd14cdbee9701af684fa1844385fe30da134ee8908c9bbc92d5f7f6
sha512
57cb0747678e6b7b7b378a7e181ec06b4ece254ca49deea5f47b01b30418ccff8b164e7d8121c86c34a018e95c61c3d2831b3640468270d5f501d37952af6dd5
ripemd-160
b6333b86fd7c7285eebb0869ffb6da1cc57aeb65
Diameter
40463974
Circumference
127121323.45345
Area
1.2859584817665E+15
Volume
3.4689993714186E+22
Surface area
5.1438339270659E+15
Circumference
127121323.45345
Perimeter
80927948
Area
409333297968169
Diagonal
28612350.409156
Surface area
2455999787809014
Volume
8.2816259631591E+21
Space diagonal
35042829.422073
Perimeter
60695961
Area
1.7724651732765E+14
Altitude
17521414.711037
Surface area
1.7724651732765E+14
Volume
9.759989796334E+20
Height
9537450.1363854