213156987 is an odd 9-digits composite number following 213156986
and preceding 213156988 . In scientific notation, it is written as 2.13156987 × 10^8.
The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors.
There are 142104656 positive integers (up to 213156987) that are relatively prime to 213156987.
213156987 has 4 divisors, whose sum is 284209320
The reverse of 213156987 is 789651312
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 42
Digital Root 6
Name
two hundred thirteen million one hundred fifty-six thousand nine hundred eighty-seven
Scientific notation
2.13156987 × 10^8
Engineering notation
2.13156987 × 10^6
Prime Factorization
3 × 71052329
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
213156987
Product of the distinct prime numbers
The prime factorization of 213156987 is 3 × 71052329.
Since it has a total of 2 prime factors.
1 , 9 , 46 , 17 , 230 , 540 , 198 , 1506 , 33564 , 68240 , 212714 , 285795 , 210968 , 6316703 , 91061256 , 70291746 , 728390482 , 632003399 , 302587825 , 8993137319
n×2
426313974
n×3
639470961
n×4
852627948
n×5
1065784935
n÷2
106578493.5
n÷3
71052329
n÷3
53289246.75
n÷5
42631397.4
n2
45435901106918169
n3
9.6849797815806E+24
n4
2.0644211093976E+33
n5
4.400457835784E+41
2 √n
14599.896814704
3 √n
597.35594596809
4 √n
120.8300327514
5 √n
46.316945890023
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
-213156986
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 213156987 can be divided by 4 positive divisors.
The sum of these divisors (counting 213156987) is 1, the average is 0.25.
Base
System
Value
2
Binary
1100101101001000010001111011
3
Ternary
112212002111102020
4
Quaternary
30231020101323
5
Quinary
414032010422
6
Senary
33052405523
8
Octal
1455102173
10
Decimal
213156987
12
Duodecimal
5b4768a3
16
Hexadecimal
cb4847b
20
Vigesimal
36c4c97
36
Base36
3iwozf
md5
9c4a974cbc6b96815b2b5fd661ca5023
sha1
12f7ebbb892faf857280d8e916e9a3f98b097a4b
sha256
b69d27cc00867206ecc8e7282b720a493fa108fb3c560c49129b25e38b221666
sha512
37093cf8ea85e64f78482f692402aa6ca57860221dbaa61897a5ae72c1c86612868553b5739e1c018bd91603df5aae4eb234ae6ff2c5b4dcfc2bc50e12fb34b5
ripemd-160
7a4ab79deee0fa85220310f1f4364aedd5ac8e75
Diameter
426313974
Circumference
1339304848.8411
Area
1.4274109312673E+17
Volume
4.0568348442639E+25
Surface area
5.7096437250691E+17
Circumference
1339304848.8411
Perimeter
852627948
Area
45435901106918169
Diagonal
301449501.92999
Surface area
272615406641509014
Volume
9.6849797815806E+24
Space diagonal
369198731.4723
Perimeter
639470961
Area
1.9674322301214E+16
Altitude
184599365.73615
Surface area
1.9674322301214E+16
Volume
1.1413858132017E+24
Height
100483167.31