210640981 is an odd 9-digits composite number following 210640980
and preceding 210640982 . In scientific notation, it is written as 2.10640981 × 10^8.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 206159212 positive integers (up to 210640981) that are relatively prime to 210640981.
210640981 has 4 divisors, whose sum is 215122752
The reverse of 210640981 is 189046012
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 31
Digital Root 4
Name
two hundred ten million six hundred forty thousand nine hundred eighty-one
Scientific notation
2.10640981 × 10^8
Engineering notation
2.10640981 × 10^6
Prime Factorization
47 × 4481723
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
210640981
Product of the distinct prime numbers
The prime factorization of 210640981 is 47 × 4481723.
Since it has a total of 2 prime factors.
4 , 6 , 42 , 70 , 571 , 930 , 8788 , 8827 , 93417 , 51632 , 426854 , 46491 , 2691841 , 1605440 , 35639575 , 47551673 , 875293271 , 705364760 , 7152480876 , 623977042
n×2
421281962
n×3
631922943
n×4
842563924
n×5
1053204905
n÷2
105320490.5
n÷3
70213660.333333
n÷3
52660245.25
n÷5
42128196.2
n2
44369622876642361
n3
9.346060889336E+24
n4
1.9686634342155E+33
n5
4.1468119704197E+41
2 √n
14513.475841438
3 √n
594.99633356967
4 √n
120.4718881791
5 √n
46.207085220266
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
-210640980
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 210640981 can be divided by 4 positive divisors.
The sum of these divisors (counting 210640981) is 1, the average is 0.25.
Base
System
Value
2
Binary
1100100011100010000001010101
3
Ternary
112200100200002211
4
Quaternary
30203202001111
5
Quinary
412411002411
6
Senary
32522433421
8
Octal
1443420125
10
Decimal
210640981
12
Duodecimal
5a662871
16
Hexadecimal
c8e2055
20
Vigesimal
35ga291
36
Base36
3hermd
md5
7a05e941b11deccce42cb1563bb6cd12
sha1
005cc2cfa7e4375a144dcc6a3d2a9828653114f8
sha256
4d6b52c2d61ab28fffe8317f4f694ff5a17d53f199e1662def88d772eb861379
sha512
f990a3807e2dceae99a9ddbd56b64b1de83de75f59323f27e6df59b787331be8d91bf8be77c78ad55adb36e7fec58318b208b93fd5525c0522f58f5a39ad8759
ripemd-160
3219b668d87a29206313a215a4b22ab8d566c5ef
Diameter
421281962
Circumference
1323496316.9091
Area
1.3939128127181E+17
Volume
3.9148688306588E+25
Surface area
5.5756512508724E+17
Circumference
1323496316.9091
Perimeter
842563924
Area
44369622876642361
Diagonal
297891332.12177
Surface area
266217737259854166
Volume
9.346060889336E+24
Space diagonal
364840881.24815
Perimeter
631922943
Area
1.9212610283754E+16
Altitude
182420440.62408
Surface area
1.9212610283754E+16
Volume
1.1014438387053E+24
Height
99297110.707258