215340981 is an odd 9-digits composite number following 215340980
and preceding 215340982 . In scientific notation, it is written as 2.15340981 × 10^8.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 139947824 positive integers (up to 215340981) that are relatively prime to 215340981.
215340981 has 8 divisors, whose sum is 287193984
The reverse of 215340981 is 189043512
Previous prime number is 12361
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 33
Digital Root 6
Name
two hundred fifteen million three hundred forty thousand nine hundred eighty-one
Scientific notation
2.15340981 × 10^8
Engineering notation
2.15340981 × 10^6
Prime Factorization
3 × 12361 × 5807
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
215340981
Product of the distinct prime numbers
The prime factorization of 215340981 is 3 × 12361 × 5807.
Since it has a total of 3 prime factors.
4 , 6 , 42 , 70 , 541 , 166 , 3285 , 4398 , 91665 , 8729 , 214670 , 546058 , 2067483 , 4882176 , 99783850 , 27742295 , 138085112 , 381077618 , 6736872664 , 1278495573
n×2
430681962
n×3
646022943
n×4
861363924
n×5
1076704905
n÷2
107670490.5
n÷3
71780327
n÷3
53835245.25
n÷5
43068196.2
n2
46371738098042361
n3
9.9857355727075E+24
n4
2.1503380942334E+33
n5
4.630559146939E+41
2 √n
14674.501047736
3 √n
599.38917558914
4 √n
121.13835498196
5 √n
46.411471421397
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-215340980
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 215340981 can be divided by 8 positive divisors.
The sum of these divisors (counting 215340981) is 1, the average is 0.125.
Base
System
Value
2
Binary
1100110101011101011110110101
3
Ternary
120000012110021220
4
Quaternary
30311131132311
5
Quinary
420111402411
6
Senary
33211300553
8
Octal
1465353665
10
Decimal
215340981
12
Duodecimal
6014a759
16
Hexadecimal
cd5d7b5
20
Vigesimal
375hc91
36
Base36
3k7i5x
md5
5ccc0591071420a5b2ca2fa9da1bf0db
sha1
d45a34b3321a26a3de86a3ccf18163ab394e09a1
sha256
a27bb71608e5f89b34feb94e9bfb139dfe75767a61f3f87d441048392a922410
sha512
4ae248ef5e12232910647f9fca75e28c34f3e2a43b50db4962a80fc59808193feb6be6f122141c05451fab4dbf04353d0312e83cd77afb5250270cb2b0d092c6
ripemd-160
518b68065eab5d6ac81ae8ddcea6206af86d2dce
Diameter
430681962
Circumference
1353027287.8528
Area
1.45681111743E+17
Volume
4.1828151354544E+25
Surface area
5.82724446972E+17
Circumference
1353027287.8528
Perimeter
861363924
Area
46371738098042361
Diagonal
304538135.86493
Surface area
278230428588254166
Volume
9.9857355727075E+24
Space diagonal
372981520.04372
Perimeter
646022943
Area
2.0079551605272E+16
Altitude
186490760.02186
Surface area
2.0079551605272E+16
Volume
1.1768302230995E+24
Height
101512711.95498