20921768 (number)

20921768 is an even 8-digits composite number following 20921767 and preceding 20921769. In scientific notation, it is written as 2.0921768 × 10^7. The sum of its digits is 35. It has a total of 6 prime factors and 32 positive divisors. There are 8774592 positive integers (up to 20921768) that are relatively prime to 20921768.

Interesting facts

Basic properties

Name

Name twenty million nine hundred twenty-one thousand seven hundred sixty-eight

Notation

Scientific notation 2.0921768 × 10^7
Engineering notation 2.0921768 × 10^6

Prime Factorization of 20921768

Prime Factorization 2 × 2 × 2 × 7 × 47 × 7949

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 5230442
Product of the distinct prime numbers

The prime factorization of 20921768 is 2 × 2 × 2 × 7 × 47 × 7949. Since it has a total of 6 prime factors.

Most popular turbo-numbers

5, 1, 93, 55, 347, 884, 9461, 9976, 75745, 43677, 875467, 831632, 6116812, 8489540, 32600068, 22475144, 69842677, 332749647, 3347384812, 2128439902

Basic calculations (n = 20921768)

Multiplication

n×y
n×2 41843536
n×3 62765304
n×4 83687072
n×5 104608840

Division

n÷y
n÷2 10460884
n÷3 6973922.6666667
n÷3 5230442
n÷5 4184353.6

Exponentiation

ny
n2 437720376245824
n3 9.1578841606878E+21
n4 1.9159912778079E+29
n5 4.008592500432E+36

Nth Root

y√n
2√n 4574.0319194339
3√n 275.54939425273
4√n 67.631589656268
5√n 29.115193205294

Divisors of 20921768

1, 2, 4, 7, 8, 14, 28, 47, 56, 94, 188, 329, 376, 658, 1316, 2632, 7949, 15898, 31796, 55643, 63592, 111286, 222572, 373603, 445144, 747206, 1494412, 2615221, 2988824, 5230442, 10460884, 20921768

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20921767
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20921768 can be divided by 32 positive divisors. The sum of these divisors (counting 20921768) is 1, the average is 0.03125.

Base conversion 20921768

Base System Value
2 Binary 1001111110011110110101000
3 Ternary 1110100221021022
4 Quaternary 1033303312220
5 Quinary 20323444033
6 Senary 2024232012
8 Octal 117636650
10 Decimal 20921768
12 Duodecimal 700b608
16 Hexadecimal 13f3da8
20 Vigesimal 6af488
36 Base36 cgfc8

Cryptographic Hash Functions

md5 6ce2b8aa7bd80f7c7fda8314e90f5208
sha1 47bbca14e4d2b10357a684dabff15df7560c7b01
sha256 77cca8b5d63fe748d42803a2c65bcc8953e9b6ba7ebf7f43733cb904c04b395a
sha512 9900a231549b8acf67dc3ba48701b6b09cd19d71ba77cfdd6a3e76ab06a97333145b1798b16c67159db9dbaf333b7c0eeeee7fbd0351a3bbb659d1ebe14737a2
ripemd-160 3b016b7a4ab6a5eae8c1a0dcb616986652ce6c6b

20921768 as geometric shapes

Circle

Radius = n
Diameter 41843536
Circumference 131455345.29782
Area 1.3751391183404E+15

Sphere

Radius = n
Volume 3.8360455468858E+22
Surface area 5.5005564733618E+15
Circumference 131455345.29782

Square

Length = n
Perimeter 83687072
Area 437720376245824
Diagonal 29587848.054423

Cube

Length = n
Surface area 2626322257474944
Volume 9.1578841606878E+21
Space diagonal 36237565.160169

Equilateral Triangle

Length = n
Perimeter 62765304
Area 1.8953848279148E+14
Altitude 18118782.580084

Triangular Pyramid

Length = n
Surface area 1.8953848279148E+14
Volume 1.0792669985572E+21
Height 9862616.0181411