21006421 (number)

21006421 is an odd 8-digits prime number following 21006420 and preceding 21006422. In scientific notation, it is written as 2.1006421 × 10^7. The sum of its digits is 16. It has a total of 1 prime factors and 2 positive divisors. There are 21006420 positive integers (up to 21006421) that are relatively prime to 21006421.

Interesting facts

Basic properties

Name

Name twenty-one million six thousand four hundred twenty-one

Notation

Scientific notation 2.1006421 × 10^7
Engineering notation 2.1006421 × 10^6

Prime Factorization of 21006421

Prime Factorization 21006421

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 21006421
Product of the distinct prime numbers

The prime factorization of 21006421 is 21006421. Since it has a total of 1 prime factors.

Most popular turbo-numbers

2, 9, 52, 63, 446, 491, 6267, 9351, 11308, 52175, 966698, 627267, 3829195, 2111523, 33705159, 93378099, 910175042, 663014209, 2283866260, 4935148323

Basic calculations (n = 21006421)

Multiplication

n×y
n×2 42012842
n×3 63019263
n×4 84025684
n×5 105032105

Division

n÷y
n÷2 10503210.5
n÷3 7002140.3333333
n÷3 5251605.25
n÷5 4201284.2

Exponentiation

ny
n2 441269723229241
n3 9.2694975807069E+21
n4 1.9471896863881E+29
n5 4.0903486319127E+36

Nth Root

y√n
2√n 4583.2762299473
3√n 275.92053390305
4√n 67.699898300864
5√n 29.138716160804

Divisors of 21006421

1, 21006421

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 21006422
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 10503211
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 4583.2763390396
Returns the nth root of the product of n divisors
H Harmonic Mean 1.999999904791
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21006421 can be divided by 2 positive divisors. The sum of these divisors (counting 21006421) is 21006422, the average is 10503211.

Base conversion 21006421

Base System Value
2 Binary 1010000001000100001010101
3 Ternary 1110112020101121
4 Quaternary 1100020201111
5 Quinary 20334201141
6 Senary 2030123541
8 Octal 120104125
10 Decimal 21006421
12 Duodecimal 70505b1
16 Hexadecimal 1408855
20 Vigesimal 6b5g11
36 Base36 ci8np

Cryptographic Hash Functions

md5 1cfa38cb70840c37217c8fb3c7792056
sha1 9a540bcef629480c23b1a54aeae836949eac7aa1
sha256 08d77bff295be04413c9cd56e2ef5f26b4c666ba4a5953fc7c1b3153c1a74aad
sha512 43bde406454bf4080259dc35faaeac2021c759aeecee0e234e093c13149617fdd9d2de211412216090e4f3d0255ba89cb9a3383457b6aebf10b99a0d95ba4a68
ripemd-160 bd42033b89d0125a3480a1a272535ec14a49299a

21006421 as geometric shapes

Circle

Radius = n
Diameter 42012842
Circumference 131987235.78363
Area 1.3862897207486E+15

Sphere

Radius = n
Volume 3.8827980669356E+22
Surface area 5.5451588829943E+15
Circumference 131987235.78363

Square

Length = n
Perimeter 84025684
Area 441269723229241
Diagonal 29707565.475119

Cube

Length = n
Surface area 2647618339375446
Volume 9.2694975807069E+21
Space diagonal 36384188.457182

Equilateral Triangle

Length = n
Perimeter 63019263
Area 1.9107539511873E+14
Altitude 18192094.228591

Triangular Pyramid

Length = n
Surface area 1.9107539511873E+14
Volume 1.0924207662517E+21
Height 9902521.8250397