211312981 is an odd 9-digits composite number following 211312980
and preceding 211312982 . In scientific notation, it is written as 2.11312981 × 10^8.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 192102700 positive integers (up to 211312981) that are relatively prime to 211312981.
211312981 has 4 divisors, whose sum is 230523264
The reverse of 211312981 is 189213112
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 28
Digital Root 1
Name
two hundred eleven million three hundred twelve thousand nine hundred eighty-one
Scientific notation
2.11312981 × 10^8
Engineering notation
2.11312981 × 10^6
Prime Factorization
11 × 19210271
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
211312981
Product of the distinct prime numbers
The prime factorization of 211312981 is 11 × 19210271.
Since it has a total of 2 prime factors.
6 , 6 , 51 , 6 , 501 , 376 , 6325 , 6655 , 79621 , 81103 , 371429 , 939237 , 7631261 , 3260766 , 70246688 , 85400853 , 858854261 , 995178945 , 776529641 , 1815126321
n×2
422625962
n×3
633938943
n×4
845251924
n×5
1056564905
n÷2
105656490.5
n÷3
70437660.333333
n÷3
52828245.25
n÷5
42262596.2
n2
44653175939106361
n3
9.43579571881E+24
n4
1.9939061214488E+33
n5
4.2133824635749E+41
2 √n
14536.608304553
3 √n
595.62839337543
4 √n
120.56785767589
5 √n
46.236530214549
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
-211312980
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 211312981 can be divided by 4 positive divisors.
The sum of these divisors (counting 211312981) is 1, the average is 0.25.
Base
System
Value
2
Binary
1100100110000110000101010101
3
Ternary
112201121210220201
4
Quaternary
30212012011111
5
Quinary
413044003411
6
Senary
32545100501
8
Octal
1446060525
10
Decimal
211312981
12
Duodecimal
5a927731
16
Hexadecimal
c986155
20
Vigesimal
360e291
36
Base36
3ht651
md5
7af561d250e03d682f7c7f72f91ca85f
sha1
10897cdfb4f488e5a9aa1354464323476c50b38d
sha256
26df5be7396c3536fa00f010b803eab8f01816b33fab1ad099a091a9cc242cfc
sha512
8af5aa717812bf5da23424d85bc1c44856cbe1e53de31340967c2ecbdf7963dd8485b8195570779fc6f053fdfe5a249a12bf6df849de33433400353bdd6d491a
ripemd-160
b60217255a3ad1cbfc1af2cb154d0425b40b343a
Diameter
422625962
Circumference
1327718617.4355
Area
1.4028208948975E+17
Volume
3.9524568681317E+25
Surface area
5.61128357959E+17
Circumference
1327718617.4355
Perimeter
845251924
Area
44653175939106361
Diagonal
298841683.63569
Surface area
267919055634638166
Volume
9.43579571881E+24
Space diagonal
366004819.39084
Perimeter
633938943
Area
1.9335392361461E+16
Altitude
183002409.69542
Surface area
1.9335392361461E+16
Volume
1.1120191897769E+24
Height
99613894.545229