1290391921 (number)

1290391921 is an odd 10-digits composite number following 1290391920 and preceding 1290391922. In scientific notation, it is written as 1.290391921 × 10^9. The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors. There are 1020968928 positive integers (up to 1290391921) that are relatively prime to 1290391921.

Interesting facts

Basic properties

Name

Name one billion two hundred ninety million three hundred ninety-one thousand nine hundred twenty-one

Notation

Scientific notation 1.290391921 × 10^9
Engineering notation 1.290391921 × 10^9

Prime Factorization of 1290391921

Prime Factorization 7 × 91 × 2025733

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 1290391921
Product of the distinct prime numbers

The prime factorization of 1290391921 is 7 × 91 × 2025733. Since it has a total of 3 prime factors.

Most popular turbo-numbers

4, 5, 76, 86, 967, 207, 7818, 7750, 15652, 17769, 152097, 393363, 5716628, 5996477, 78480433, 1165334, 343889416, 711766996, 7076628654, 9716267195

Basic calculations (n = 1290391921)

Multiplication

n×y
n×2 2580783842
n×3 3871175763
n×4 5161567684
n×5 6451959605

Division

n÷y
n÷2 645195960.5
n÷3 430130640.33333
n÷3 322597980.25
n÷5 258078384.2

Exponentiation

ny
n2 1665111309782070241
n3 2.1486461817085E+27
n4 2.7725956739642E+36
n5 3.5777350578829E+45

Nth Root

y√n
2√n 35922.02556928
3√n 1088.6974652353
4√n 189.53106755696
5√n 66.396368570351

Divisors of 1290391921

1, 7, 91, 637, 2025733, 14180131, 184341703, 1290391921

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 -1290391920
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 1290391921 can be divided by 8 positive divisors. The sum of these divisors (counting 1290391921) is 1, the average is 0.125.

Base conversion 1290391921

Base System Value
2 Binary 1001100111010011101000101110001
3 Ternary 10022221002200221101
4 Quaternary 1030322131011301
5 Quinary 10120320020141
6 Senary 332013324401
8 Octal 11472350561
10 Decimal 1290391921
12 Duodecimal 300196701
16 Hexadecimal 4ce9d171
20 Vigesimal 1034ijg1
36 Base36 lc9ks1

Cryptographic Hash Functions

md5 298bdc99fe9289841dbd3472a7d3fea3
sha1 f97d4e7d2b8884d4639848d019ba540d951637dc
sha256 c30e35d988b9808b4de5187e939149cd110aeefaa30047fb1fa03cb97e900268
sha512 bbcf3acd9a4c3cb4cdc312b8fe965ad8bfe795ec951661ad3db10eb7b81c0947cd7509f1127d3150d4f37d9df94d1b5b43ffaf81726d9a51248375d077d112ae
ripemd-160 138cb54959194185a2c3402f316ed40679c473dd

1290391921 as geometric shapes

Circle

Radius = n
Diameter 2580783842
Circumference 8107771558.5304
Area 5.2311014582206E+18

Sphere

Radius = n
Volume 9.0002280794923E+27
Surface area 2.0924405832883E+19
Circumference 8107771558.5304

Square

Length = n
Perimeter 5161567684
Area 1665111309782070241
Diagonal 1824889755.4549

Cube

Length = n
Surface area 9.9906678586924E+18
Volume 2.1486461817085E+27
Space diagonal 2235024368.8484

Equilateral Triangle

Length = n
Perimeter 3871175763
Area 7.2101434720003E+17
Altitude 1117512184.4242

Triangular Pyramid

Length = n
Surface area 7.2101434720003E+17
Volume 2.5322038090945E+26
Height 608296585.15162