1621787139 is an odd 10-digits composite number following 1621787138
and preceding 1621787140 . In scientific notation, it is written as 1.621787139 × 10^9.
The sum of its digits is 45. It has a total of 4 prime factors and 12 positive divisors.
There are 926735472 positive integers (up to 1621787139) that are relatively prime to 1621787139.
1621787139 has 12 divisors, whose sum is 2677236016
The reverse of 1621787139 is 9317871261
Previous prime number is 7
Is Prime? no Number parity odd Number length 10 Sum of Digits 45 Digital Root 9
Name
one billion six hundred twenty-one million seven hundred eighty-seven thousand one hundred thirty-nine
Scientific notation
1.621787139 × 10^9
Engineering notation
1.621787139 × 10^9
Prime Factorization
3 × 3 × 7 × 25742653
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
540595713 Product of the distinct prime numbers
The prime factorization of 1621787139 is 3 × 3 × 7 × 25742653.
Since it has a total of 4 prime factors.
4 , 10 , 15 , 63 , 864 , 533 , 5909 , 3998 , 37922 , 48129 , 11402 , 59552 , 81409 , 222431 , 75385094 , 89312707 , 503976140 , 344249267 , 1578278784 , 3097898820
n×2
3243574278
n×3
4865361417
n×4
6487148556
n×5
8108935695
n÷2
810893569.5
n÷3
540595713
n÷3
405446784.75
n÷5
324357427.8
n2
2630193524225805321
n3
4.2656140306705E+27
n4
6.9179179748794E+36
n5
1.1219390400316E+46
2 √n40271.418388232
3 √n1174.8920109598
4 √n200.67739879775
5 √n69.50223498235
1 , 3 , 7 , 9 , 21 , 63 , 25742653 , 77227959 , 180198571 , 231683877 , 540595713 , 1621787139
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
-1621787138 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 1621787139 can be divided by 12 positive divisors.
The sum of these divisors (counting 1621787139) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1100000101010101000001000000011
3
Ternary
11012000200022201100
4
Quaternary
1200222220020003
5
Quinary
11310134142024
6
Senary
424532305443
8
Octal
14052501003
10
Decimal
1621787139
12
Duodecimal
393172283
16
Hexadecimal
60aa8203
20
Vigesimal
156g37gj
36
Base36
qtkiyr
md5
96f04ac85310d2363b2f62e67324f83b
sha1
4d00a04cb337dc24be1419073e719798af030781
sha256
0aee29841d630ba471a08ba27d2edd134241a0a3a50f330d0f273d04b150a4f6
sha512
161ec43f42aadbb9331d9e13ba2ebaab0f887ba4818861084fe3aa0e05dbd71e6d6b9636fec2f2914fd9c8a536529522e19cfe19af05c93c55906b355ef8cdd8
ripemd-160
b162384ae19cb6d569f9b8a7179b2301d5a042af
Diameter
3243574278
Circumference
10189989123.138
Area
8.2629966532272E+18
Volume
1.7867762269072E+28
Surface area
3.3051986612909E+19
Circumference
10189989123.138
Perimeter
6487148556
Area
2630193524225805321
Diagonal
2293553367.2561
Surface area
1.5781161145355E+19
Volume
4.2656140306705E+27
Space diagonal
2809017723.8098
Perimeter
4865361417
Area
1.1389072044244E+18
Altitude
1404508861.9049
Surface area
1.1389072044244E+18
Volume
5.0270743450193E+26
Height
764517789.08535