1938698721 is an odd 10-digits composite number following 1938698720
and preceding 1938698722 . In scientific notation, it is written as 1.938698721 × 10^9.
The sum of its digits is 54. It has a total of 4 prime factors and 12 positive divisors.
There are 1286770776 positive integers (up to 1938698721) that are relatively prime to 1938698721.
1938698721 has 12 divisors, whose sum is 2812681872
The reverse of 1938698721 is 1278968391
Previous prime number is 227
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 54
Digital Root 9
Name
one billion nine hundred thirty-eight million six hundred ninety-eight thousand seven hundred twenty-one
Scientific notation
1.938698721 × 10^9
Engineering notation
1.938698721 × 10^9
Prime Factorization
3 × 3 × 227 × 948947
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
646232907
Product of the distinct prime numbers
The prime factorization of 1938698721 is 3 × 3 × 227 × 948947.
Since it has a total of 4 prime factors.
1 , 7 , 30 , 19 , 106 , 827 , 5734 , 9359 , 77199 , 77195 , 657202 , 671952 , 2670060 , 332471 , 77949093 , 62031655 , 157484555 , 800094360 , 857609134 , 9077576683
n×2
3877397442
n×3
5816096163
n×4
7754794884
n×5
9693493605
n÷2
969349360.5
n÷3
646232907
n÷3
484674680.25
n÷5
387739744.2
n2
3758552730807035841
n3
7.2867013720267E+27
n4
1.4126718630257E+37
n5
2.7387451340406E+46
2 √n
44030.656604234
3 √n
1246.9147852381
4 √n
209.83483172303
5 √n
72.028117564954
1 , 3 , 9 , 227 , 681 , 2043 , 948947 , 2846841 , 8540523 , 215410969 , 646232907 , 1938698721
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1938698720
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1938698721 can be divided by 12 positive divisors.
The sum of these divisors (counting 1938698721) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1110011100011100011000111100001
3
Ternary
12000010000002200100
4
Quaternary
1303203203013201
5
Quinary
12432301324341
6
Senary
520213013013
8
Octal
16343430741
10
Decimal
1938698721
12
Duodecimal
461324169
16
Hexadecimal
738e31e1
20
Vigesimal
1a5gh6g1
36
Base36
w291i9
md5
728b6912e1ce45629add66b43fde26c3
sha1
636823c109624ad8f8c327fe94dae066a82dcff6
sha256
f2b9c073b91ec2d0af3a5c57482b929d6a9e2f2a6e3f7a60ee162ae85fb573fe
sha512
d83dd2c69fd5e4ff6a673a7d0de578f5c14aae80659d94abcd9080c4f8519471c65c3bff92a6767313f2ec6f8a9d13a85f66481fd4c3585cf3625c88523f5e27
ripemd-160
10832adceb0ea198119019ddecc270b4e21ab8e9
Diameter
3877397442
Circumference
12181203318.835
Area
1.1807841647233E+19
Volume
3.0522463332349E+28
Surface area
4.7231366588933E+19
Circumference
12181203318.835
Perimeter
7754794884
Area
3758552730807035841
Diagonal
2741734024.5936
Surface area
2.2551316384842E+19
Volume
7.2867013720267E+27
Space diagonal
3357924685.3408
Perimeter
5816096163
Area
1.6275010731711E+18
Altitude
1678962342.6704
Surface area
1.6275010731711E+18
Volume
8.587459921069E+26
Height
913911341.53119