21449920 (number)

21449920 is an even 8-digits composite number following 21449919 and preceding 21449921. In scientific notation, it is written as 2.1449920 × 10^7. The sum of its digits is 31. It has a total of 8 prime factors and 28 positive divisors. There are 8073216 positive integers (up to 21449920) that are relatively prime to 21449920.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1449920 × 10^7
Engineering notation 2.1449920 × 10^6

Prime Factorization of 21449920

Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 85 × 3943

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 8
Total number of prime factors
rad Radical 670310
Product of the distinct prime numbers

The prime factorization of 21449920 is 2 × 2 × 2 × 2 × 2 × 2 × 85 × 3943. Since it has a total of 8 prime factors.

Most popular turbo-numbers

10, 7, 61, 86, 529, 457, 958, 7466, 90083, 1331, 471032, 376135, 5987516, 7268527, 53297673, 96426572, 308193790, 475097852, 2419976840, 2099553166

Basic calculations (n = 21449920)

Multiplication

n×y
n×2 42899840
n×3 64349760
n×4 85799680
n×5 107249600

Division

n÷y
n÷2 10724960
n÷3 7149973.3333333
n÷3 5362480
n÷5 4289984

Exponentiation

ny
n2 460099068006400
n3 9.8690882008118E+21
n4 2.1169115238036E+29
n5 4.5407582832665E+36

Nth Root

y√n
2√n 4631.4058340854
3√n 277.84882141372
4√n 68.054432876084
5√n 29.260728558303

Divisors of 21449920

1, 2, 4, 8, 16, 32, 64, 85, 170, 340, 680, 1360, 2720, 3943, 5440, 7886, 15772, 31544, 63088, 126176, 252352, 335155, 670310, 1340620, 2681240, 5362480, 10724960, 21449920

28 divisors

τ Total Divisors 28
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21449919
Sum of the proper positive divisors of n
A Arithmetic Mean 0.035714285714286
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 28
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21449920 can be divided by 28 positive divisors. The sum of these divisors (counting 21449920) is 1, the average is 0.035714285714286.

Base conversion 21449920

Base System Value
2 Binary 1010001110100110011000000
3 Ternary 1111100202202111
4 Quaternary 1101310303000
5 Quinary 20442344140
6 Senary 2043425104
8 Octal 121646300
10 Decimal 21449920
12 Duodecimal 7225194
16 Hexadecimal 1474cc0
20 Vigesimal 6e14g0
36 Base36 crqv4

Cryptographic Hash Functions

md5 f3bdf55ed83458bad196adaba20f3d44
sha1 28d1d59b81bf42facf642d8041ba3a358ea3ce3a
sha256 bf00d97461cc038aabf926be16777be5ba2dab72f73dcdd670fea4f12daaf833
sha512 5aefa1ba7f7683b7ff7de92fc55b886f965d26873f4e772a1b711e35c4e98e366a38c97e5adfd25a44fd5bcf0b5e061b5fc9b9b4db2a5a911d85fffa57a6d5e4
ripemd-160 8d70d321e404b3d4ac37639d53a6860262a6cbf1

21449920 as geometric shapes

Circle

Radius = n
Diameter 42899840
Circumference 134773822.18418
Area 1.4454438519724E+15

Sphere

Radius = n
Volume 4.1339539985734E+22
Surface area 5.7817754078897E+15
Circumference 134773822.18418

Square

Length = n
Perimeter 85799680
Area 460099068006400
Diagonal 30334767.775818

Cube

Length = n
Surface area 2760594408038400
Volume 9.8690882008118E+21
Space diagonal 37152351.258288

Equilateral Triangle

Length = n
Perimeter 64349760
Area 1.9922874057554E+14
Altitude 18576175.629144

Triangular Pyramid

Length = n
Surface area 1.9922874057554E+14
Volume 1.163083198487E+21
Height 10111589.258606