21931440 (number)

21931440 is an even 8-digits composite number following 21931439 and preceding 21931441. In scientific notation, it is written as 2.1931440 × 10^7. The sum of its digits is 24. It has a total of 6 prime factors and 20 positive divisors. There are 5848320 positive integers (up to 21931440) that are relatively prime to 21931440.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1931440 × 10^7
Engineering notation 2.1931440 × 10^6

Prime Factorization of 21931440

Prime Factorization 2 × 2 × 2 × 2 × 15 × 91381

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 2741430
Product of the distinct prime numbers

The prime factorization of 21931440 is 2 × 2 × 2 × 2 × 15 × 91381. Since it has a total of 6 prime factors.

Most popular turbo-numbers

4, 9, 7, 93, 393, 686, 8462, 5265, 48542, 77538, 107843, 120, 5476841, 9152748, 71391850, 17878785, 976616890, 158009334, 1711369705, 7902650356

Basic calculations (n = 21931440)

Multiplication

n×y
n×2 43862880
n×3 65794320
n×4 87725760
n×5 109657200

Division

n÷y
n÷2 10965720
n÷3 7310480
n÷3 5482860
n÷5 4386288

Exponentiation

ny
n2 480988060473600
n3 1.0548760788993E+22
n4 2.3134951431816E+29
n5 5.0738279922978E+36

Nth Root

y√n
2√n 4683.1015363752
3√n 279.91255772918
4√n 68.433190312707
5√n 29.390936847978

Divisors of 21931440

1, 2, 4, 8, 15, 16, 30, 60, 120, 240, 91381, 182762, 365524, 731048, 1370715, 1462096, 2741430, 5482860, 10965720, 21931440

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21931439
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21931440 can be divided by 20 positive divisors. The sum of these divisors (counting 21931440) is 1, the average is 0.05.

Base conversion 21931440

Base System Value
2 Binary 1010011101010010110110000
3 Ternary 1112021020021120
4 Quaternary 1103222112300
5 Quinary 21103301230
6 Senary 2102022240
8 Octal 123522660
10 Decimal 21931440
12 Duodecimal 7417980
16 Hexadecimal 14ea5b0
20 Vigesimal 6h18c0
36 Base36 d22eo

Cryptographic Hash Functions

md5 358757a373a0811eab7b6146726401a8
sha1 4d5e3b83c0091ecf7c5d04370c76bbda02cf5f22
sha256 0dd289d3209f2fc338fe82e9b0f45e59d4f303ae1a1382c3c0c9292463abd5b2
sha512 28e2a1cc2fd962bce91cca58cd0ed341e036eee3cb51fc007ef74c4ed47fb6981c71fbe5a60aa646bb4a3bad5d4019d2b89e8320c5032a58f0b395e16e0cfc06
ripemd-160 8052dd57ddaadbdc74c46e2b961fbb48d533852e

21931440 as geometric shapes

Circle

Radius = n
Diameter 43862880
Circumference 137799301.57329
Area 1.5110685572483E+15

Sphere

Radius = n
Volume 4.4186545865569E+22
Surface area 6.0442742289931E+15
Circumference 137799301.57329

Square

Length = n
Perimeter 87725760
Area 480988060473600
Diagonal 31015739.890372

Cube

Length = n
Surface area 2885928362841600
Volume 1.0548760788993E+22
Space diagonal 37986368.363148

Equilateral Triangle

Length = n
Perimeter 65794320
Area 2.0827393964357E+14
Altitude 18993184.181574

Triangular Pyramid

Length = n
Surface area 2.0827393964357E+14
Volume 1.2431833811686E+21
Height 10338579.963457