215695989 is an odd 9-digits composite number following 215695988
and preceding 215695990 . In scientific notation, it is written as 2.15695989 × 10^8.
The sum of its digits is 54. It has a total of 2 prime factors and 4 positive divisors.
There are 143797320 positive integers (up to 215695989) that are relatively prime to 215695989.
215695989 has 4 divisors, whose sum is 239662220
The reverse of 215695989 is 989596512
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 54
Digital Root 9
Name
two hundred fifteen million six hundred ninety-five thousand nine hundred eighty-nine
Scientific notation
2.15695989 × 10^8
Engineering notation
2.15695989 × 10^6
Prime Factorization
9 × 23966221
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
215695989
Product of the distinct prime numbers
The prime factorization of 215695989 is 9 × 23966221.
Since it has a total of 2 prime factors.
7 , 10 , 98 , 84 , 334 , 603 , 9818 , 485 , 96388 , 55232 , 303796 , 56619 , 8040309 , 4126931 , 10467512 , 6717775 , 552799617 , 622660196 , 7248807340 , 9541079795
n×2
431391978
n×3
647087967
n×4
862783956
n×5
1078479945
n÷2
107847994.5
n÷3
71898663
n÷3
53923997.25
n÷5
43139197.8
n2
46524759670688121
n3
1.0035204050156E+25
n4
2.1645532624153E+33
n5
4.6688545667984E+41
2 √n
14686.592150666
3 √n
599.71837616738
4 √n
121.18825087716
5 √n
46.426763995226
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
-215695988
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 215695989 can be divided by 4 positive divisors.
The sum of these divisors (counting 215695989) is 1, the average is 0.25.
Base
System
Value
2
Binary
1100110110110100001001110101
3
Ternary
120000212111021100
4
Quaternary
30312310021311
5
Quinary
420204232424
6
Senary
33223040313
8
Octal
1466641165
10
Decimal
215695989
12
Duodecimal
602a0099
16
Hexadecimal
cdb4275
20
Vigesimal
3781jj9
36
Base36
3kf439
md5
a1e9e162cda6f5fba38308960269ce61
sha1
d33f24bf91fb1877cce90e5c8a8d39b589f4b06a
sha256
0607a488d11c361fe7ed39777a5046397f8d919fab0e466e7ad7675acb99cbf3
sha512
808f98b57a2cc16fd673f44fbd73c7e93af87da580e42fbe4e645855695c059175b7031061ee7e0f1d8b2e62f9247d09583f33f78221963a6a43c642a6c69ad1
ripemd-160
6fea5ac26262bf242876d32447061c591939b0cb
Diameter
431391978
Circumference
1355257868.9024
Area
1.4616184319146E+17
Volume
4.2035364428328E+25
Surface area
5.8464737276586E+17
Circumference
1355257868.9024
Perimeter
862783956
Area
46524759670688121
Diagonal
305040192.99328
Surface area
279148558024128726
Volume
1.0035204050156E+25
Space diagonal
373596411.93682
Perimeter
647087967
Area
2.0145811889891E+16
Altitude
186798205.96841
Surface area
2.0145811889891E+16
Volume
1.182660139076E+24
Height
101680064.33109