1290280721 is an odd 10-digits prime number following 1290280720
and preceding 1290280722 . In scientific notation, it is written as 1.290280721 × 10^9.
The sum of its digits is 32. It has a total of 1 prime factors and 2 positive divisors.
There are 1290280720 positive integers (up to 1290280721) that are relatively prime to 1290280721.
1290280721 has 2 divisors, whose sum is 1290280722
The reverse of 1290280721 is 1270820921
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 10
Sum of Digits 32
Digital Root 5
Name
one billion two hundred ninety million two hundred eighty thousand seven hundred twenty-one
Scientific notation
1.290280721 × 10^9
Engineering notation
1.290280721 × 10^9
Prime Factorization
1290280721
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
1290280721
Product of the distinct prime numbers
The prime factorization of 1290280721 is 1290280721.
Since it has a total of 1 prime factors.
5 , 2 , 45 , 24 , 390 , 343 , 1242 , 3457 , 3469 , 82117 , 46233 , 829802 , 2773578 , 6558434 , 14692643 , 90955410 , 513247080 , 459177068 , 8241446984 , 1436728752
n×2
2580561442
n×3
3870842163
n×4
5161122884
n×5
6451403605
n÷2
645140360.5
n÷3
430093573.66667
n÷3
322570180.25
n÷5
258056144.2
n2
1664824338984279841
n3
2.148090748443E+27
n4
2.7716400796744E+36
n5
3.5761937603548E+45
2 √n
35920.477739028
3 √n
1088.6661913684
4 √n
189.52698419758
5 √n
66.39522418459
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
1290280722
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
645140361
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
35920.477752948
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999984499
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1290280721 can be divided by 2 positive divisors.
The sum of these divisors (counting 1290280721) is 1290280722, the average is 645140361.
Base
System
Value
2
Binary
1001100111010000001111100010001
3
Ternary
10022220220001101212
4
Quaternary
1030322001330101
5
Quinary
10120302440341
6
Senary
332011105505
8
Octal
11472017421
10
Decimal
1290280721
12
Duodecimal
300142295
16
Hexadecimal
4ce81f11
20
Vigesimal
103451g1
36
Base36
lc76z5
md5
dadf4aefbd499aed2d1596c09ba26f23
sha1
2950d88c92490036bf40ca373b394a02eb032a49
sha256
a745d57a65a25150dc1387dadbd858fbdef2fce1fbe8743b89c516379c177be6
sha512
f0fbaa253ea56b7d913355be262d62210b060e9b9a811d08c5a8abcdd7c8353e1088a1952b277cd0cf3d67ccd924f94f5b33dc8d4461d742099ae5d70a36c2e4
ripemd-160
bacf2734ac852ba4024caebcc1163f387d28fc5c
Diameter
2580561442
Circumference
8107072868.3243
Area
5.2301999128705E+18
Volume
8.9979014860702E+27
Surface area
2.0920799651482E+19
Circumference
8107072868.3243
Perimeter
5161122884
Area
1664824338984279841
Diagonal
1824732494.9067
Surface area
9.9889460339057E+18
Volume
2.148090748443E+27
Space diagonal
2234831764.7986
Perimeter
3870842163
Area
7.2089008519951E+17
Altitude
1117415882.3993
Surface area
7.2089008519951E+17
Volume
2.5315492247135E+26
Height
608244164.96891