21031904 (number)

21031904 is an even 8-digits composite number following 21031903 and preceding 21031905. In scientific notation, it is written as 2.1031904 × 10^7. The sum of its digits is 20. It has a total of 7 prime factors and 24 positive divisors. There are 10366720 positive integers (up to 21031904) that are relatively prime to 21031904.

Interesting facts

Basic properties

Name

Name twenty-one million thirty-one thousand nine hundred four

Notation

Scientific notation 2.1031904 × 10^7
Engineering notation 2.1031904 × 10^6

Prime Factorization of 21031904

Prime Factorization 2 × 2 × 2 × 2 × 2 × 71 × 9257

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 1314494
Product of the distinct prime numbers

The prime factorization of 21031904 is 2 × 2 × 2 × 2 × 2 × 71 × 9257. Since it has a total of 7 prime factors.

Most popular turbo-numbers

9, 5, 72, 52, 608, 737, 4405, 3217, 15603, 71635, 947872, 736098, 5831914, 6323660, 10303295, 84801364, 38391993, 109244675, 8305532510, 7256741116

Basic calculations (n = 21031904)

Multiplication

n×y
n×2 42063808
n×3 63095712
n×4 84127616
n×5 105159520

Division

n÷y
n÷2 10515952
n÷3 7010634.6666667
n÷3 5257976
n÷5 4206380.8

Exponentiation

ny
n2 442340985865216
n3 9.3032731499826E+21
n4 1.9566554777621E+29
n5 4.1152190169367E+36

Nth Root

y√n
2√n 4586.0553856228
3√n 276.03206236779
4√n 67.720420743102
5√n 29.145782398821

Divisors of 21031904

1, 2, 4, 8, 16, 32, 71, 142, 284, 568, 1136, 2272, 9257, 18514, 37028, 74056, 148112, 296224, 657247, 1314494, 2628988, 5257976, 10515952, 21031904

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21031903
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21031904 can be divided by 24 positive divisors. The sum of these divisors (counting 21031904) is 1, the average is 0.041666666666667.

Base conversion 21031904

Base System Value
2 Binary 1010000001110101111100000
3 Ternary 1110120112100102
4 Quaternary 1100032233200
5 Quinary 20341010104
6 Senary 2030441532
8 Octal 120165740
10 Decimal 21031904
12 Duodecimal 70632a8
16 Hexadecimal 140ebe0
20 Vigesimal 6b8jf4
36 Base36 cisbk

Cryptographic Hash Functions

md5 b731caa5e5c3b4bb4498140f6a0a2bfa
sha1 d24d6121c46caeef41d65b5c021021e0cb0dba7e
sha256 85eb563aa2d42b13e07700baccbaea7ca6b0da9a15e90bb0b8854c39df6b3cd6
sha512 7ff59dcdc2f5b3bf9525d175f1e844a6502ee46c6379741c1c90431fbe94d77a2a734ee827a4f543e99905e7d158e998beaed62e0c70a46939e0883e453bcc39
ripemd-160 6d45b5d58ba834e86d641dc08a55d25a52a25a52

21031904 as geometric shapes

Circle

Radius = n
Diameter 42063808
Circumference 132147350.19481
Area 1.3896551915758E+15

Sphere

Radius = n
Volume 3.8969459443099E+22
Surface area 5.5586207663033E+15
Circumference 132147350.19481

Square

Length = n
Perimeter 84127616
Area 442340985865216
Diagonal 29743603.879329

Cube

Length = n
Surface area 2654045915191296
Volume 9.3032731499826E+21
Space diagonal 36428326.307911

Equilateral Triangle

Length = n
Perimeter 63095712
Area 1.9153926544717E+14
Altitude 18214163.153956

Triangular Pyramid

Length = n
Surface area 1.9153926544717E+14
Volume 1.0964012552639E+21
Height 9914534.626443