20921408 (number)

20921408 is an even 8-digits composite number following 20921407 and preceding 20921409. In scientific notation, it is written as 2.0921408 × 10^7. The sum of its digits is 26. It has a total of 8 prime factors and 28 positive divisors. There are 10340352 positive integers (up to 20921408) that are relatively prime to 20921408.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0921408 × 10^7
Engineering notation 2.0921408 × 10^6

Prime Factorization of 20921408

Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 89 × 3673

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 8
Total number of prime factors
rad Radical 653794
Product of the distinct prime numbers

The prime factorization of 20921408 is 2 × 2 × 2 × 2 × 2 × 2 × 89 × 3673. Since it has a total of 8 prime factors.

Most popular turbo-numbers

4, 9, 4, 80, 322, 687, 2010, 5889, 35658, 11730, 964963, 880345, 73967, 4176220, 27897393, 76694758, 858079704, 595921178, 9387204241, 1682044017

Basic calculations (n = 20921408)

Multiplication

n×y
n×2 41842816
n×3 62764224
n×4 83685632
n×5 104607040

Division

n÷y
n÷2 10460704
n÷3 6973802.6666667
n÷3 5230352
n÷5 4184281.6

Exponentiation

ny
n2 437705312702464
n3 9.1574114308158E+21
n4 1.9158594076796E+29
n5 4.0082476338704E+36

Nth Root

y√n
2√n 4573.9925666752
3√n 275.54781378797
4√n 67.631298720897
5√n 29.115093007818

Divisors of 20921408

1, 2, 4, 8, 16, 32, 64, 89, 178, 356, 712, 1424, 2848, 3673, 5696, 7346, 14692, 29384, 58768, 117536, 235072, 326897, 653794, 1307588, 2615176, 5230352, 10460704, 20921408

28 divisors

τ Total Divisors 28
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20921407
Sum of the proper positive divisors of n
A Arithmetic Mean 0.035714285714286
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 28
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20921408 can be divided by 28 positive divisors. The sum of these divisors (counting 20921408) is 1, the average is 0.035714285714286.

Base conversion 20921408

Base System Value
2 Binary 1001111110011110001000000
3 Ternary 1110100220202222
4 Quaternary 1033303301000
5 Quinary 20323441113
6 Senary 2024230212
8 Octal 117636100
10 Decimal 20921408
12 Duodecimal 700b368
16 Hexadecimal 13f3c40
20 Vigesimal 6af3a8
36 Base36 cgf28

Cryptographic Hash Functions

md5 29785eab30578c98a7b59a7dfa453046
sha1 ec8cf0852b9362508dd80f7d5566e2dcfc00228e
sha256 48424b809eb2def15b44389af3f1cd53018ddd63e09f54862865a45e0dc74c4a
sha512 c7570d4a7b6cab6104ec8c3e7649f548a6b725ccf139b7c75cbf31859d45979773888bd5c260b1e407c253830f2839eff6c28bd6a9e793e372ef43da74b6028c
ripemd-160 e9d55c8faba5844605ab1c63275acf8b9f7d5533

20921408 as geometric shapes

Circle

Radius = n
Diameter 41842816
Circumference 131453083.35111
Area 1.3750917948233E+15

Sphere

Radius = n
Volume 3.83584753026E+22
Surface area 5.5003671792931E+15
Circumference 131453083.35111

Square

Length = n
Perimeter 83685632
Area 437705312702464
Diagonal 29587338.937541

Cube

Length = n
Surface area 2626231876214784
Volume 9.1574114308158E+21
Space diagonal 36236941.621878

Equilateral Triangle

Length = n
Perimeter 62764224
Area 1.8953196008587E+14
Altitude 18118470.810939

Triangular Pyramid

Length = n
Surface area 1.8953196008587E+14
Volume 1.0792112868075E+21
Height 9862446.3125137