20131487 is an odd 8-digits prime number following 20131486
and preceding 20131488 . In scientific notation, it is written as 2.0131487 × 10^7.
The sum of its digits is 26. It has a total of 1 prime factors and 2 positive divisors.
There are 20131486 positive integers (up to 20131487) that are relatively prime to 20131487.
20131487 has 2 divisors, whose sum is 20131488
The reverse of 20131487 is 78413102
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million one hundred thirty-one thousand four hundred eighty-seven
Scientific notation
2.0131487 × 10^7
Engineering notation
2.0131487 × 10^6
Prime Factorization
20131487
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20131487
Product of the distinct prime numbers
The prime factorization of 20131487 is 20131487.
Since it has a total of 1 prime factors.
9 , 1 , 84 , 46 , 740 , 987 , 7563 , 5947 , 4866 , 22507 , 200983 , 344612 , 7428831 , 1057151 , 10965400 , 18013219 , 655100635 , 748017784 , 9282038595 , 7909871811
n×2
40262974
n×3
60394461
n×4
80525948
n×5
100657435
n÷2
10065743.5
n÷3
6710495.6666667
n÷3
5032871.75
n÷5
4026297.4
n2
405276768831169
n3
8.1588240031267E+21
n4
1.6424925935423E+29
n5
3.3065818294494E+36
2 √n
4486.8125657308
3 √n
272.03531386222
4 √n
66.983673874541
5 √n
28.891837996023
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20131488
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10065744
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4486.8126771685
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999006531
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20131487 can be divided by 2 positive divisors.
The sum of these divisors (counting 20131487) is 20131488, the average is 10065744.
Base
System
Value
2
Binary
1001100110010111010011111
3
Ternary
1101212210012122
4
Quaternary
1030302322133
5
Quinary
20123201422
6
Senary
1555253155
8
Octal
114627237
10
Decimal
20131487
12
Duodecimal
68aa1bb
16
Hexadecimal
1332e9f
20
Vigesimal
65g8e7
36
Base36
bzhjz
md5
b16147af71e35506c07e7a235447e85c
sha1
6e42224abac008175199d94ee7cc98ac1278d631
sha256
e39ee0a47ff38557867032ad122dfcf4dbe0e7af778b06d9b10db50aa20336cf
sha512
a02e9770ded8c8522196474a95bc4a6b272ddffadd0bcb8bcd95e0ede1a0eb870d6ae7d105500c2d19c400afdf705eb8c7e516bea4d8870ac800e89dd476819a
ripemd-160
ac1ec673ade33872f7651389b9b9a3c767ff78a8
Diameter
40262974
Circumference
126489863.33008
Area
1.2732145196306E+15
Volume
3.4175602066873E+22
Surface area
5.0928580785224E+15
Circumference
126489863.33008
Perimeter
80525948
Area
405276768831169
Diagonal
28470221.946138
Surface area
2431660612987014
Volume
8.1588240031267E+21
Space diagonal
34868758.315912
Perimeter
60394461
Area
1.7548998868573E+14
Altitude
17434379.157956
Surface area
1.7548998868573E+14
Volume
9.6152662985308E+20
Height
9490073.9820459