1820121489 is an odd 10-digits composite number following 1820121488
and preceding 1820121490 . In scientific notation, it is written as 1.820121489 × 10^9.
The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors.
There are 1212843888 positive integers (up to 1820121489) that are relatively prime to 1820121489.
1820121489 has 8 divisors, whose sum is 1888420800
The reverse of 1820121489 is 9841210281
Previous prime number is 2293
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 36
Digital Root 9
Name
one billion eight hundred twenty million one hundred twenty-one thousand four hundred eighty-nine
Scientific notation
1.820121489 × 10^9
Engineering notation
1.820121489 × 10^9
Prime Factorization
27 × 2293 × 29399
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1820121489
Product of the distinct prime numbers
The prime factorization of 1820121489 is 27 × 2293 × 29399.
Since it has a total of 3 prime factors.
9 , 9 , 17 , 36 , 722 , 275 , 490 , 2319 , 97353 , 92266 , 983433 , 538694 , 1339655 , 369934 , 40028121 , 69889542 , 998679493 , 108231702 , 597176050 , 8376327572
n×2
3640242978
n×3
5460364467
n×4
7280485956
n×5
9100607445
n÷2
910060744.5
n÷3
606707163
n÷3
455030372.25
n÷5
364024297.8
n2
3312842234719577121
n3
6.0297753410799E+27
n4
1.0974923672142E+37
n5
1.99756944158E+46
2 √n
42662.881864684
3 √n
1220.9563157104
4 √n
206.54995004764
5 √n
71.124639052531
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
-1820121488
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 1820121489 can be divided by 8 positive divisors.
The sum of these divisors (counting 1820121489) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101100011111001101100110010001
3
Ternary
11200211212202022000
4
Quaternary
1230133031212101
5
Quinary
12211422341424
6
Senary
500335304213
8
Octal
15437154621
10
Decimal
1820121489
12
Duodecimal
42967b069
16
Hexadecimal
6c7cd991
20
Vigesimal
188ff3e9
36
Base36
u3niq9
md5
a845c63a661448401a15ac86816a5a30
sha1
97f09b830de554a3d6a91d59604b72fe17fac1e1
sha256
58bdbb33d90331d2a31e401e4ba653af5804caf5c47e1dbcf0a791a0d72aad8f
sha512
4b95af93a3fc5d61379c03b165c44f690772c21ba941f318bd6ef343f179dc7db20dafaa3db1acb89b8b594a4121dece143b2781ffa89b4e0a1e12e9b5de929e
ripemd-160
e9602f37888bd5834998d011d2cfaabd661cd577
Diameter
3640242978
Circumference
11436160596.967
Area
1.0407600827097E+19
Volume
2.5257463885778E+28
Surface area
4.1630403308388E+19
Circumference
11436160596.967
Perimeter
7280485956
Area
3312842234719577121
Diagonal
2574040494.9105
Surface area
1.9877053408317E+19
Volume
6.0297753410799E+27
Space diagonal
3152542894.8959
Perimeter
5460364467
Area
1.4345027669986E+18
Altitude
1576271447.448
Surface area
1.4345027669986E+18
Volume
7.1061583878484E+26
Height
858013498.3035