21821388 (number)

21821388 is an even 8-digits composite number following 21821387 and preceding 21821389. In scientific notation, it is written as 2.1821388 × 10^7. The sum of its digits is 33. It has a total of 4 prime factors and 12 positive divisors. There are 6957456 positive integers (up to 21821388) that are relatively prime to 21821388.

Interesting facts

Basic properties

Name

Name twenty-one million eight hundred twenty-one thousand three hundred eighty-eight

Notation

Scientific notation 2.1821388 × 10^7
Engineering notation 2.1821388 × 10^6

Prime Factorization of 21821388

Prime Factorization 2 × 2 × 69 × 79063

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10910694
Product of the distinct prime numbers

The prime factorization of 21821388 is 2 × 2 × 69 × 79063. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 6, 48, 61, 91, 46, 6441, 5489, 80927, 90741, 635560, 648556, 538210, 3305453, 28686372, 89912043, 655096342, 577840542, 638353248, 8007874752

Basic calculations (n = 21821388)

Multiplication

n×y
n×2 43642776
n×3 65464164
n×4 87285552
n×5 109106940

Division

n÷y
n÷2 10910694
n÷3 7273796
n÷3 5455347
n÷5 4364277.6

Exponentiation

ny
n2 476172974246544
n3 1.0390755226148E+22
n4 2.267407014028E+29
n5 4.9477968207026E+36

Nth Root

y√n
2√n 4671.3368536212
3√n 279.44357184503
4√n 68.347178827083
5√n 29.361380709836

Divisors of 21821388

1, 2, 4, 69, 138, 276, 79063, 158126, 316252, 5455347, 10910694, 21821388

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21821387
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21821388 can be divided by 12 positive divisors. The sum of these divisors (counting 21821388) is 1, the average is 0.083333333333333.

Base conversion 21821388

Base System Value
2 Binary 1010011001111011111001100
3 Ternary 1112001122022120
4 Quaternary 1103033133030
5 Quinary 21041241023
6 Senary 2055412540
8 Octal 123173714
10 Decimal 21821388
12 Duodecimal 7384150
16 Hexadecimal 14cf7cc
20 Vigesimal 6g7d98
36 Base36 czpho

Cryptographic Hash Functions

md5 3b6ba77634c5e27268895867bfe79ac9
sha1 0abdc50279f9b084f6a80720b3d987725d851500
sha256 67c1862cdc438864a67aa68a60f0e2f405c271a5c51ba04f9de4ae0e6a8be81e
sha512 7c02f934f85714d4c2ff15d3041cc553a191965320368ee016f9a2d221e61103c0a568af85f9a5feb61c8960971b5ab926e9b8a022e42b886c802c3b7fe2bc97
ripemd-160 8ef3d13e04b19227c64a9e68d6758e06b963ad3d

21821388 as geometric shapes

Circle

Radius = n
Diameter 43642776
Circumference 137107824.46386
Area 1.4959415177309E+15

Sphere

Radius = n
Volume 4.3524693711621E+22
Surface area 5.9837660709238E+15
Circumference 137107824.46386

Square

Length = n
Perimeter 87285552
Area 476172974246544
Diagonal 30860102.859406

Cube

Length = n
Surface area 2857037845479264
Volume 1.0390755226148E+22
Space diagonal 37795752.707674

Equilateral Triangle

Length = n
Perimeter 65464164
Area 2.0618894614655E+14
Altitude 18897876.353837

Triangular Pyramid

Length = n
Surface area 2.0618894614655E+14
Volume 1.2245622470098E+21
Height 10286700.953135