21128907 (number)

21128907 is an odd 8-digits composite number following 21128906 and preceding 21128908. In scientific notation, it is written as 2.1128907 × 10^7. The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors. There are 13524000 positive integers (up to 21128907) that are relatively prime to 21128907.

Interesting facts

Basic properties

Name

Name twenty-one million one hundred twenty-eight thousand nine hundred seven

Notation

Scientific notation 2.1128907 × 10^7
Engineering notation 2.1128907 × 10^6

Prime Factorization of 21128907

Prime Factorization 87 × 211 × 1151

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21128907
Product of the distinct prime numbers

The prime factorization of 21128907 is 87 × 211 × 1151. Since it has a total of 3 prime factors.

Most popular turbo-numbers

5, 1, 68, 56, 765, 665, 1545, 5987, 93139, 36229, 733616, 884883, 5112530, 7346766, 38881091, 16297037, 332049098, 263967560, 822513751, 8028913615

Basic calculations (n = 21128907)

Multiplication

n×y
n×2 42257814
n×3 63386721
n×4 84515628
n×5 105644535

Division

n÷y
n÷2 10564453.5
n÷3 7042969
n÷3 5282226.75
n÷5 4225781.4

Exponentiation

ny
n2 446430711014649
n3 9.4325929749724E+21
n4 1.9930037973705E+29
n5 4.2109991885287E+36

Nth Root

y√n
2√n 4596.6190836309
3√n 276.4557817819
4√n 67.798370803663
5√n 29.172618075127

Divisors of 21128907

1, 87, 211, 1151, 18357, 100137, 242861, 21128907

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 -21128906
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 21128907 can be divided by 8 positive divisors. The sum of these divisors (counting 21128907) is 1, the average is 0.125.

Base conversion 21128907

Base System Value
2 Binary 1010000100110011011001011
3 Ternary 1110202110102010
4 Quaternary 1100212123023
5 Quinary 20402111112
6 Senary 2032511003
8 Octal 120463313
10 Decimal 21128907
12 Duodecimal 70ab463
16 Hexadecimal 14266cb
20 Vigesimal 6c1257
36 Base36 ckv63

Cryptographic Hash Functions

md5 24972bbdcd3c1a7dde8552d393dc306b
sha1 57d087381b28f598244b832165637ccea5c75cf0
sha256 ecbca5cac3c39c2a323fc656f85822a67beaf7485a9a186303765be5f791be95
sha512 8ee26976b5abda4b21c5d6927dca58c0ed48982f0cdc39f33b3cdd19412ddc2fefb8c804af9e44f320aacd85607a04f7b0b13785e4fece10da2b0b9719778901
ripemd-160 993206dfbddde9f248c0dfffc48a3adbe238e127

21128907 as geometric shapes

Circle

Radius = n
Diameter 42257814
Circumference 132756838.01916
Area 1.4025034420605E+15

Sphere

Radius = n
Volume 3.9511153059301E+22
Surface area 5.610013768242E+15
Circumference 132756838.01916

Square

Length = n
Perimeter 84515628
Area 446430711014649
Diagonal 29880786.83752

Cube

Length = n
Surface area 2678584266087894
Volume 9.4325929749724E+21
Space diagonal 36596340.432398

Equilateral Triangle

Length = n
Perimeter 63386721
Area 1.9331016838412E+14
Altitude 18298170.216199

Triangular Pyramid

Length = n
Surface area 1.9331016838412E+14
Volume 1.1116417427959E+21
Height 9960262.2791733