20721888 (number)

20721888 is an even 8-digits composite number following 20721887 and preceding 20721889. In scientific notation, it is written as 2.0721888 × 10^7. The sum of its digits is 36. It has a total of 9 prime factors and 96 positive divisors. There are 6048000 positive integers (up to 20721888) that are relatively prime to 20721888.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0721888 × 10^7
Engineering notation 2.0721888 × 10^6

Prime Factorization of 20721888

Prime Factorization 2 × 2 × 2 × 2 × 2 × 9 × 11 × 31 × 211

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 9
Total number of prime factors
rad Radical 1295118
Product of the distinct prime numbers

The prime factorization of 20721888 is 2 × 2 × 2 × 2 × 2 × 9 × 11 × 31 × 211. Since it has a total of 9 prime factors.

Most popular turbo-numbers

6, 6, 74, 33, 221, 487, 9437, 5777, 57467, 13670, 664776, 176915, 3679735, 81086, 39710903, 53934716, 841828626, 787864705, 2357441281, 3568856998

Basic calculations (n = 20721888)

Multiplication

n×y
n×2 41443776
n×3 62165664
n×4 82887552
n×5 103609440

Division

n÷y
n÷2 10360944
n÷3 6907296
n÷3 5180472
n÷5 4144377.6

Exponentiation

ny
n2 429396642284544
n3 8.8979091289964E+21
n4 1.8438147640524E+29
n5 3.820732303344E+36

Nth Root

y√n
2√n 4552.1300508663
3√n 274.66908073831
4√n 67.469474956207
5√n 29.059347901991

Divisors of 20721888

1, 2, 4, 8, 9, 11, 16, 18, 22, 31, 32, 36, 44, 62, 72, 88, 99, 124, 144, 176, 198, 211, 248, 279, 288, 341, 352, 396, 422, 496, 558, 682, 792, 844, 992, 1116, 1364, 1584, 1688, 1899, 2232, 2321, 2728, 3069, 3168, 3376, 3798, 4464, 4642, 5456, 6138, 6541, 6752, 7596, 8928, 9284, 10912, 12276, 13082, 15192, 18568, 20889, 24552, 26164, 30384, 37136, 41778, 49104, 52328, 58869, 60768, 71951, 74272, 83556, 98208, 104656, 117738, 143902, 167112, 209312, 235476, 287804, 334224, 470952, 575608, 647559, 668448, 941904, 1151216, 1295118, 1883808, 2302432, 2590236, 5180472, 10360944, 20721888

96 divisors

τ Total Divisors 96
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20721887
Sum of the proper positive divisors of n
A Arithmetic Mean 0.010416666666667
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 96
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20721888 can be divided by 96 positive divisors. The sum of these divisors (counting 20721888) is 1, the average is 0.010416666666667.

Base conversion 20721888

Base System Value
2 Binary 1001111000011000011100000
3 Ternary 1102222210002100
4 Quaternary 1033003003200
5 Quinary 20301100023
6 Senary 2020050400
8 Octal 117030340
10 Decimal 20721888
12 Duodecimal 6b33a00
16 Hexadecimal 13c30e0
20 Vigesimal 69a4e8
36 Base36 cc540

Cryptographic Hash Functions

md5 5b4bdf0f4ccdc1a1027eae0fee5b68e5
sha1 071aa3f46f31da0e47b3a9018f6015246c326dca
sha256 f4ee9edb1aaa764869d8e30f56a7e1ff09d493d21f5a80741eae9a3bd9af8d63
sha512 367235e1cd0063556583e0576bb5dd9fc929a5690119d4c1d5454a30e129accae3f8bc8683038c533cb909177607760335e7de0614ed2899cfaf857c5020d37a
ripemd-160 f569542ebe82b7cde8719dc2cbf52d85fd89005d

20721888 as geometric shapes

Circle

Radius = n
Diameter 41443776
Circumference 130199462.21862
Area 1.3489893368772E+15

Sphere

Radius = n
Volume 3.7271474602619E+22
Surface area 5.395957347509E+15
Circumference 130199462.21862

Square

Length = n
Perimeter 82887552
Area 429396642284544
Diagonal 29305175.047576

Cube

Length = n
Surface area 2576379853707264
Volume 8.8979091289964E+21
Space diagonal 35891362.844752

Equilateral Triangle

Length = n
Perimeter 62165664
Area 1.8593420025908E+14
Altitude 17945681.422376

Triangular Pyramid

Length = n
Surface area 1.8593420025908E+14
Volume 1.0486286472492E+21
Height 9768391.6825254