20307987 is an odd 8-digits composite number following 20307986
and preceding 20307988 . In scientific notation, it is written as 2.0307987 × 10^7.
The sum of its digits is 36. It has a total of 2 prime factors and 4 positive divisors.
There are 11604528 positive integers (up to 20307987) that are relatively prime to 20307987.
20307987 has 4 divisors, whose sum is 20630400
The reverse of 20307987 is 78970302
Previous prime number is 63
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty million three hundred seven thousand nine hundred eighty-seven
Scientific notation
2.0307987 × 10^7
Engineering notation
2.0307987 × 10^6
Prime Factorization
63 × 322349
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20307987
Product of the distinct prime numbers
The prime factorization of 20307987 is 63 × 322349.
Since it has a total of 2 prime factors.
10 , 9 , 76 , 52 , 556 , 752 , 4106 , 1066 , 86723 , 75871 , 772728 , 200611 , 2565128 , 2645486 , 2749685 , 78787860 , 142668942 , 719342645 , 6610874377 , 7606751067
n×2
40615974
n×3
60923961
n×4
81231948
n×5
101539935
n÷2
10153993.5
n÷3
6769329
n÷3
5076996.75
n÷5
4061597.4
n2
412414335992169
n3
8.3753049739426E+21
n4
1.7008558453186E+29
n5
3.4540958395604E+36
2 √n
4506.4383941201
3 √n
272.82801226926
4 √n
67.130011128557
5 √n
28.942322290231
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
-20307986
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 20307987 can be divided by 4 positive divisors.
The sum of these divisors (counting 20307987) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101011110000000010011
3
Ternary
1102012202022200
4
Quaternary
1031132000103
5
Quinary
20144323422
6
Senary
2003134243
8
Octal
115360023
10
Decimal
20307987
12
Duodecimal
6974383
16
Hexadecimal
135e013
20
Vigesimal
66i9j7
36
Base36
c39qr
md5
2b737f8d31f72842d68222a9ae20a9ae
sha1
3ec54bb5bf063e8cc78fd791bce11a41a707342e
sha256
0d6cffdfe6cb38496816f254c687d1c22e4ec26c841d0eadf718c86f56f9f29e
sha512
c527db1ddeb9acc65d29155d8698a30dfbbc37b07244452d2ebeb92e8a7fec08833736058e6d6bff4479578037bc456e5fb8e97a767abec75a22650432554d17
ripemd-160
f2f0f550490910d08b72b31dc6b706939695dc24
Diameter
40615974
Circumference
127598845.53679
Area
1.2956378481881E+15
Volume
3.508239543695E+22
Surface area
5.1825513927524E+15
Circumference
127598845.53679
Perimeter
81231948
Area
412414335992169
Diagonal
28719830.639897
Surface area
2474486015953014
Volume
8.3753049739426E+21
Space diagonal
35174465.283448
Perimeter
60923961
Area
1.7858064592705E+14
Altitude
17587232.641724
Surface area
1.7858064592705E+14
Volume
9.8703915693004E+20
Height
9573276.8799655