215480981 is an odd 9-digits composite number following 215480980
and preceding 215480982 . In scientific notation, it is written as 2.15480981 × 10^8.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 213749712 positive integers (up to 215480981) that are relatively prime to 215480981.
215480981 has 8 divisors, whose sum is 217219200
The reverse of 215480981 is 189084512
Previous prime number is 373
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 38
Digital Root 2
Name
two hundred fifteen million four hundred eighty thousand nine hundred eighty-one
Scientific notation
2.15480981 × 10^8
Engineering notation
2.15480981 × 10^6
Prime Factorization
199 × 373 × 2903
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
215480981
Product of the distinct prime numbers
The prime factorization of 215480981 is 199 × 373 × 2903.
Since it has a total of 3 prime factors.
1 , 7 , 34 , 59 , 225 , 918 , 6311 , 2308 , 99115 , 1149 , 243925 , 459699 , 4614008 , 3962759 , 58281661 , 61503704 , 853762753 , 658999994 , 2019426274 , 7651612058
n×2
430961962
n×3
646442943
n×4
861923924
n×5
1077404905
n÷2
107740490.5
n÷3
71826993.666667
n÷3
53870245.25
n÷5
43096196.2
n2
46432053172722361
n3
1.0005224367502E+25
n4
2.1559355618345E+33
n5
4.6456310983689E+41
2 √n
14679.270451899
3 √n
599.51904141961
4 √n
121.15803915506
5 √n
46.417504566512
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
-215480980
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 215480981 can be divided by 8 positive divisors.
The sum of these divisors (counting 215480981) is 1, the average is 0.125.
Base
System
Value
2
Binary
1100110101111111101010010101
3
Ternary
120000110120100002
4
Quaternary
30311333222111
5
Quinary
420130342411
6
Senary
33214301045
8
Octal
1465775225
10
Decimal
215480981
12
Duodecimal
601b7785
16
Hexadecimal
cd7fa95
20
Vigesimal
376f291
36
Base36
3kai6t
md5
2fb4f00aa99056f9e2025e47331fae61
sha1
22c25a8f3561bfe727815348ef3ab1223f4c7744
sha256
02703e91a9d4110737d5e58f883920afa6af31338f88d10f8130b75a6d1ffd1c
sha512
070eadc4e7d491d5f9051215177d13ce2d2ccb754ef51e5560f884b0b931b001c446308a2f36279e8e0644aa86ce42008b1438e6623c251a2f6a0c3ed8c154e4
ripemd-160
e3de64070540d7807adc0f88ce8028ba84ef5e1c
Diameter
430961962
Circumference
1353906933.7958
Area
1.4587059713852E+17
Volume
4.1909785827284E+25
Surface area
5.8348238855406E+17
Circumference
1353906933.7958
Perimeter
861923924
Area
46432053172722361
Diagonal
304736125.76366
Surface area
278592319036334166
Volume
1.0005224367502E+25
Space diagonal
373224007.15678
Perimeter
646442943
Area
2.0105668798724E+16
Altitude
186612003.57839
Surface area
2.0105668798724E+16
Volume
1.1791269995923E+24
Height
101578708.58789