20239987 is an odd 8-digits prime number following 20239986
and preceding 20239988 . In scientific notation, it is written as 2.0239987 × 10^7.
The sum of its digits is 40. It has a total of 1 prime factors and 2 positive divisors.
There are 20239986 positive integers (up to 20239987) that are relatively prime to 20239987.
20239987 has 2 divisors, whose sum is 20239988
The reverse of 20239987 is 78993202
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty million two hundred thirty-nine thousand nine hundred eighty-seven
Scientific notation
2.0239987 × 10^7
Engineering notation
2.0239987 × 10^6
Prime Factorization
20239987
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20239987
Product of the distinct prime numbers
The prime factorization of 20239987 is 20239987.
Since it has a total of 1 prime factors.
7 , 7 , 91 , 94 , 916 , 662 , 5868 , 4170 , 87679 , 17875 , 966471 , 569396 , 8152411 , 969397 , 52554658 , 65293941 , 565441207 , 226933553 , 9688006690 , 1562261369
n×2
40479974
n×3
60719961
n×4
80959948
n×5
101199935
n÷2
10119993.5
n÷3
6746662.3333333
n÷3
5059996.75
n÷5
4047997.4
n2
409657073760169
n3
8.2914538473639E+21
n4
1.6781891808174E+29
n5
3.3966527203286E+36
2 √n
4498.8873068793
3 √n
272.52315601557
4 √n
67.073745287402
5 √n
28.922913973518
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20239988
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10119994
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4498.8874180179
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999011857
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20239987 can be divided by 2 positive divisors.
The sum of these divisors (counting 20239987) is 20239988, the average is 10119994.
Base
System
Value
2
Binary
1001101001101011001110011
3
Ternary
1102002022001011
4
Quaternary
1031031121303
5
Quinary
20140134422
6
Senary
2001451351
8
Octal
115153163
10
Decimal
20239987
12
Duodecimal
6940b57
16
Hexadecimal
134d673
20
Vigesimal
669jj7
36
Base36
c1t9v
md5
57887acb86443980723853fd94690624
sha1
b54b3c5254e131ad5d7c61cf5aea6451f88302bc
sha256
ed17810067bfcf5372da461dc2ad69e166fafd9aa59a2e09ebe85cec12e3f9d5
sha512
cfee242b0b0f19bfee9d4b324adf411a3ea3b1d0001f25cf1aed54826f6027242e9bf220e2cbaa04d9d1c8defcf57d962a2e9a067dfa48081a2f164a7dd71a0e
ripemd-160
15432afdea89875a349ad4a79713c1a5404a012a
Diameter
40479974
Circumference
127171588.93591
Area
1.286975653416E+15
Volume
3.4731160659276E+22
Surface area
5.1479026136642E+15
Circumference
127171588.93591
Perimeter
80959948
Area
409657073760169
Diagonal
28623664.117655
Surface area
2457942442561014
Volume
8.2914538473639E+21
Space diagonal
35056685.828534
Perimeter
60719961
Area
1.7738671635815E+14
Altitude
17528342.914267
Surface area
1.7738671635815E+14
Volume
9.7715720689438E+20
Height
9541221.3725517