2189156981 is an odd 10-digits composite number following 2189156980
and preceding 2189156982 . In scientific notation, it is written as 2.189156981 × 10^9.
The sum of its digits is 50. It has a total of 3 prime factors and 8 positive divisors.
There are 1971883440 positive integers (up to 2189156981) that are relatively prime to 2189156981.
2189156981 has 8 divisors, whose sum is 2410082400
The reverse of 2189156981 is 1896519812
Previous prime number is 109
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 50
Digital Root 5
Name
two billion one hundred eighty-nine million one hundred fifty-six thousand nine hundred eighty-one
Scientific notation
2.189156981 × 10^9
Engineering notation
2.189156981 × 10^9
Prime Factorization
11 × 109 × 1825819
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
2189156981
Product of the distinct prime numbers
The prime factorization of 2189156981 is 11 × 109 × 1825819.
Since it has a total of 3 prime factors.
5 , 5 , 49 , 43 , 851 , 731 , 9554 , 199 , 40697 , 83722 , 327870 , 194503 , 2496342 , 2026346 , 60864865 , 12657555 , 815040134 , 945836059 , 6132952709 , 9260468207
n×2
4378313962
n×3
6567470943
n×4
8756627924
n×5
10945784905
n÷2
1094578490.5
n÷3
729718993.66667
n÷3
547289245.25
n÷5
437831396.2
n2
4792408287461034361
n3
1.0491334058298E+28
n4
2.2967177193725E+37
n5
5.0278756287508E+46
2 √n
46788.427853477
3 √n
1298.4512089894
4 √n
216.30632874116
5 √n
73.799833336933
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
-2189156980
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 2189156981 can be divided by 8 positive divisors.
The sum of these divisors (counting 2189156981) is 1, the average is 0.125.
Base
System
Value
2
Binary
10000010011110111110001001110101
3
Ternary
12122120021200211012
4
Quaternary
2002132332021311
5
Quinary
13440411010411
6
Senary
1001121122005
8
Octal
20236761165
10
Decimal
2189156981
12
Duodecimal
511189305
16
Hexadecimal
827be275
20
Vigesimal
1e424c91
36
Base36
107d8c5
md5
a3db818dca9a75792d8e6d0798e3dc1c
sha1
6ccedb7981254a2a0ed199db0de5198b40b9ada4
sha256
f3e49ec09d6096fcd817bb602b3ab8e8e00c9005fe8ce9436f6d2cc2b9d44c1f
sha512
fc6e9c46af8bae9a5ee0d0ceb6c29d8f6b72c5c75de51b4140471e7e324842cb1af8ec001b81028dfdfb36e3fe5ad07e5ee20e6ad1c8f128e18094b815232fd4
ripemd-160
89bf29daea2235c39c762fdcc1b1fb764270ff85
Diameter
4378313962
Circumference
13754878978.129
Area
1.505579466889E+19
Volume
4.3945997338539E+28
Surface area
6.0223178675562E+19
Circumference
13754878978.129
Perimeter
8756627924
Area
4792408287461034361
Diagonal
3095935492.6939
Surface area
2.8754449724766E+19
Volume
1.0491334058298E+28
Space diagonal
3791731116.8361
Perimeter
6567470943
Area
2.0751736611242E+18
Altitude
1895865558.418
Surface area
2.0751736611242E+18
Volume
1.2364155760526E+27
Height
1031978497.5646