1298661921 is an odd 10-digits composite number following 1298661920
and preceding 1298661922 . In scientific notation, it is written as 1.298661921 × 10^9.
The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors.
There are 830328000 positive integers (up to 1298661921) that are relatively prime to 1298661921.
1298661921 has 16 divisors, whose sum is 1503230400
The reverse of 1298661921 is 1291668921
Previous prime number is 59
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 45
Digital Root 9
Name
one billion two hundred ninety-eight million six hundred sixty-one thousand nine hundred twenty-one
Scientific notation
1.298661921 × 10^9
Engineering notation
1.298661921 × 10^9
Prime Factorization
9 × 41 × 59 × 59651
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1298661921
Product of the distinct prime numbers
The prime factorization of 1298661921 is 9 × 41 × 59 × 59651.
Since it has a total of 4 prime factors.
3 , 10 , 62 , 37 , 822 , 729 , 1346 , 228 , 53980 , 68108 , 460499 , 907244 , 254225 , 5479914 , 43011095 , 33483298 , 908006166 , 306016379 , 765233234 , 6647638323
n×2
2597323842
n×3
3895985763
n×4
5194647684
n×5
6493309605
n÷2
649330960.5
n÷3
432887307
n÷3
324665480.25
n÷5
259732384.2
n2
1686522785055410241
n3
2.1902229198503E+27
n4
2.8443591045111E+36
n5
3.6938608586782E+45
2 √n
36036.952160248
3 √n
1091.0183006936
4 √n
189.83401212704
5 √n
66.481256843606
1 , 9 , 41 , 59 , 369 , 531 , 2419 , 21771 , 59651 , 536859 , 2445691 , 3519409 , 22011219 , 31674681 , 144295769 , 1298661921
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1298661920
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1298661921 can be divided by 16 positive divisors.
The sum of these divisors (counting 1298661921) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101011010000000001000100001
3
Ternary
10100111122212020200
4
Quaternary
1031122000020201
5
Quinary
10124424140141
6
Senary
332510455413
8
Octal
11532001041
10
Decimal
1298661921
12
Duodecimal
302b04569
16
Hexadecimal
4d680221
20
Vigesimal
105gceg1
36
Base36
lh6ty9
md5
8d78e3345cb63d78326fd02fba030ed5
sha1
197dab6b62aed550097b44df418b013398644ed8
sha256
69833efbbef245b7a56e2ce5f52f3582774bf71fcefebf52bbe6783499e48902
sha512
c6a95a90df25c4d8af8afb0fa061cfbedef8c7bf9f499e119e1649ec09bd61da273bbd84669c61d3dc02da9484e3c799b27a071bf3227e0adfee50cd56ee097a
ripemd-160
8f6575193d89103bde9b28a2370b7c5ec77e1bea
Diameter
2597323842
Circumference
8159733501.0208
Area
5.2983675916419E+18
Volume
9.1743843129677E+27
Surface area
2.1193470366567E+19
Circumference
8159733501.0208
Perimeter
5194647684
Area
1686522785055410241
Diagonal
1836585301.6157
Surface area
1.0119136710332E+19
Volume
2.1902229198503E+27
Space diagonal
2249348429.027
Perimeter
3895985763
Area
7.3028578795963E+17
Altitude
1124674214.5135
Surface area
7.3028578795963E+17
Volume
2.5812024648939E+26
Height
612195100.53857