20921900 (number)

20921900 is an even 8-digits composite number following 20921899 and preceding 20921901. In scientific notation, it is written as 2.0921900 × 10^7. The sum of its digits is 23. It has a total of 7 prime factors and 72 positive divisors. There are 7603200 positive integers (up to 20921900) that are relatively prime to 20921900.

Interesting facts

Basic properties

Name

Name twenty million nine hundred twenty-one thousand nine hundred

Notation

Scientific notation 2.0921900 × 10^7
Engineering notation 2.0921900 × 10^6

Prime Factorization of 20921900

Prime Factorization 2 × 2 × 17 × 397 × 5 × 5 × 31

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 2092190
Product of the distinct prime numbers

The prime factorization of 20921900 is 2 × 2 × 17 × 397 × 5 × 5 × 31. Since it has a total of 7 prime factors.

Most popular turbo-numbers

3, 6, 73, 23, 661, 966, 2363, 7044, 64568, 80943, 337107, 886325, 357351, 4904487, 79507200, 60286350, 119788421, 792557044, 414549803, 5235382094

Basic calculations (n = 20921900)

Multiplication

n×y
n×2 41843800
n×3 62765700
n×4 83687600
n×5 104609500

Division

n÷y
n÷2 10460950
n÷3 6973966.6666667
n÷3 5230475
n÷5 4184380

Exponentiation

ny
n2 437725899610000
n3 9.1580574990505E+21
n4 1.9160396318938E+29
n5 4.008718957452E+36

Nth Root

y√n
2√n 4574.0463486939
3√n 275.54997375193
4√n 67.631696331631
5√n 29.115229944023

Divisors of 20921900

1, 2, 4, 5, 10, 17, 20, 25, 31, 34, 50, 62, 68, 85, 100, 124, 155, 170, 310, 340, 397, 425, 527, 620, 775, 794, 850, 1054, 1550, 1588, 1700, 1985, 2108, 2635, 3100, 3970, 5270, 6749, 7940, 9925, 10540, 12307, 13175, 13498, 19850, 24614, 26350, 26996, 33745, 39700, 49228, 52700, 61535, 67490, 123070, 134980, 168725, 209219, 246140, 307675, 337450, 418438, 615350, 674900, 836876, 1046095, 1230700, 2092190, 4184380, 5230475, 10460950, 20921900

72 divisors

τ Total Divisors 72
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20921899
Sum of the proper positive divisors of n
A Arithmetic Mean 0.013888888888889
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 72
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20921900 can be divided by 72 positive divisors. The sum of these divisors (counting 20921900) is 1, the average is 0.013888888888889.

Base conversion 20921900

Base System Value
2 Binary 1001111110011111000101100
3 Ternary 1110100221110012
4 Quaternary 1033303320230
5 Quinary 20324000100
6 Senary 2024232352
8 Octal 117637054
10 Decimal 20921900
12 Duodecimal 700b6b8
16 Hexadecimal 13f3e2c
20 Vigesimal 6af4f0
36 Base36 cgffw

Cryptographic Hash Functions

md5 c073e9d80b306ee2af53b4717db06023
sha1 2aa8ed8e7b4af8e82b15df9de5946ae28f2beea0
sha256 d1030526d61c661df67d54cc7994e87515aae8987721c04f979f3519169e84a1
sha512 d5d5022067ac535522545b49827ea7ed9b48f86624f32ce0e3e211de690e8262e39eb2ef5ad825e573c9911598607de54ba5731f622c0e54e8c9cdb351305f5e
ripemd-160 1675f6d1f89b441e514f1924d69da0f1e063e46e

20921900 as geometric shapes

Circle

Radius = n
Diameter 41843800
Circumference 131456174.67828
Area 1.3751564705008E+15

Sphere

Radius = n
Volume 3.8361181546893E+22
Surface area 5.500625882003E+15
Circumference 131456174.67828

Square

Length = n
Perimeter 83687600
Area 437725899610000
Diagonal 29588034.730614

Cube

Length = n
Surface area 2626355397660000
Volume 9.1580574990505E+21
Space diagonal 36237793.790875

Equilateral Triangle

Length = n
Perimeter 62765700
Area 1.8954087447833E+14
Altitude 18118896.895438

Triangular Pyramid

Length = n
Surface area 1.8954087447833E+14
Volume 1.0792874266791E+21
Height 9862678.2435379