21988428 (number)

21988428 is an even 8-digits composite number following 21988427 and preceding 21988429. In scientific notation, it is written as 2.1988428 × 10^7. The sum of its digits is 42. It has a total of 5 prime factors and 24 positive divisors. There are 5591040 positive integers (up to 21988428) that are relatively prime to 21988428.

Interesting facts

Basic properties

Name

Name twenty-one million nine hundred eighty-eight thousand four hundred twenty-eight

Notation

Scientific notation 2.1988428 × 10^7
Engineering notation 2.1988428 × 10^6

Prime Factorization of 21988428

Prime Factorization 2 × 2 × 159 × 77 × 449

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 10994214
Product of the distinct prime numbers

The prime factorization of 21988428 is 2 × 2 × 159 × 77 × 449. Since it has a total of 5 prime factors.

Most popular turbo-numbers

7, 10, 2, 35, 961, 947, 8026, 1673, 60566, 42017, 91875, 626730, 3437435, 6466497, 88215959, 6073555, 26174271, 956010179, 8440829512, 917302722

Basic calculations (n = 21988428)

Multiplication

n×y
n×2 43976856
n×3 65965284
n×4 87953712
n×5 109942140

Division

n÷y
n÷2 10994214
n÷3 7329476
n÷3 5497107
n÷5 4397685.6

Exponentiation

ny
n2 483490965911184
n3 1.0631206292589E+22
n4 2.3376351411773E+29
n5 5.1400921992047E+36

Nth Root

y√n
2√n 4689.1820182202
3√n 280.15479535946
4√n 68.477602310684
5√n 29.406195239778

Divisors of 21988428

1, 2, 4, 77, 154, 159, 308, 318, 449, 636, 898, 1796, 12243, 24486, 34573, 48972, 69146, 71391, 138292, 142782, 285564, 5497107, 10994214, 21988428

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 -21988427
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 21988428 can be divided by 24 positive divisors. The sum of these divisors (counting 21988428) is 1, the average is 0.041666666666667.

Base conversion 21988428

Base System Value
2 Binary 1010011111000010001001100
3 Ternary 1112101010110020
4 Quaternary 1103320101030
5 Quinary 21112112203
6 Senary 2103142140
8 Octal 123702114
10 Decimal 21988428
12 Duodecimal 7444950
16 Hexadecimal 14f844c
20 Vigesimal 6h8b18
36 Base36 d3ado

Cryptographic Hash Functions

md5 50ac29a3edde8e1315fb083725966c1a
sha1 cac76878131e48e6eac182b4aa91c763f987c910
sha256 b9008efdc10b047fde7b68f3928713803ecbce1595a559a2fd178c5f997d0571
sha512 f47e924f9f20649021dceea4c1c5965a1eb4c57dc32962bb1b1bc59d1e79564497ba31812ba5ae1750edf41380cbb8a087767070d18575083aec31ea02f279a0
ripemd-160 58cd2002223e017ae85a5b044639514bb17bdbfc

21988428 as geometric shapes

Circle

Radius = n
Diameter 43976856
Circumference 138157367.73758
Area 1.5189316665836E+15

Sphere

Radius = n
Volume 4.4531892783458E+22
Surface area 6.0757266663344E+15
Circumference 138157367.73758

Square

Length = n
Perimeter 87953712
Area 483490965911184
Diagonal 31096333.092864

Cube

Length = n
Surface area 2900945795467104
Volume 1.0631206292589E+22
Space diagonal 38085074.47457

Equilateral Triangle

Length = n
Perimeter 65965284
Area 2.0935772948968E+14
Altitude 19042537.237285

Triangular Pyramid

Length = n
Surface area 2.0935772948968E+14
Volume 1.2528996769471E+21
Height 10365444.364288