21121806 (number)

21121806 is an even 8-digits composite number following 21121805 and preceding 21121807. In scientific notation, it is written as 2.1121806 × 10^7. The sum of its digits is 21. It has a total of 4 prime factors and 16 positive divisors. There are 6505920 positive integers (up to 21121806) that are relatively prime to 21121806.

Interesting facts

Basic properties

Name

Name twenty-one million one hundred twenty-one thousand eight hundred six

Notation

Scientific notation 2.1121806 × 10^7
Engineering notation 2.1121806 × 10^6

Prime Factorization of 21121806

Prime Factorization 2 × 57 × 41 × 4519

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21121806
Product of the distinct prime numbers

The prime factorization of 21121806 is 2 × 57 × 41 × 4519. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 9, 81, 65, 238, 380, 6632, 2139, 90162, 72846, 446624, 108863, 5691094, 6036723, 41681385, 28563562, 806972706, 557995505, 66777683, 7476087199

Basic calculations (n = 21121806)

Multiplication

n×y
n×2 42243612
n×3 63365418
n×4 84487224
n×5 105609030

Division

n÷y
n÷2 10560903
n÷3 7040602
n÷3 5280451.5
n÷5 4224361.2

Exponentiation

ny
n2 446130688701636
n3 9.4230858574023E+21
n4 1.990325914014E+29
n5 4.2039277832576E+36

Nth Root

y√n
2√n 4595.8466031842
3√n 276.42480790539
4√n 67.792673668946
5√n 29.170656945621

Divisors of 21121806

1, 2, 41, 57, 82, 114, 2337, 4519, 4674, 9038, 185279, 257583, 370558, 515166, 10560903, 21121806

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21121805
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21121806 can be divided by 16 positive divisors. The sum of these divisors (counting 21121806) is 1, the average is 0.0625.

Base conversion 21121806

Base System Value
2 Binary 1010000100100101100001110
3 Ternary 1110202002200010
4 Quaternary 1100210230032
5 Quinary 20401344211
6 Senary 2032414050
8 Octal 120445416
10 Decimal 21121806
12 Duodecimal 70a7326
16 Hexadecimal 1424b0e
20 Vigesimal 6c04a6
36 Base36 ckpou

Cryptographic Hash Functions

md5 58a3f142a8afee64d5623d73683907a3
sha1 5ef8c41e2a0ed11ca82b36adb0ff1e53e40d6b6e
sha256 f0fb5ac8fb35203557478262b907798a6e7c90b3abe69cfd7de331e546b14062
sha512 3a64a209c66d5f25f2b5f261b6c2014787fe1f8b0cd23476732ecda54969f0fb75aa77953d2df9c538d6289032f0cea7546e4c61f1f20e6d333cf9df2b1eebb9
ripemd-160 f4ada5c5afd0edce8830fe801e11bc186e985b38

21121806 as geometric shapes

Circle

Radius = n
Diameter 42243612
Circumference 132712221.1203
Area 1.401560894166E+15

Sphere

Radius = n
Volume 3.9471329738348E+22
Surface area 5.6062435766641E+15
Circumference 132712221.1203

Square

Length = n
Perimeter 84487224
Area 446130688701636
Diagonal 29870744.507013

Cube

Length = n
Surface area 2676784132209816
Volume 9.4230858574023E+21
Space diagonal 36584041.139613

Equilateral Triangle

Length = n
Perimeter 63365418
Area 1.9318025491173E+14
Altitude 18292020.569807

Triangular Pyramid

Length = n
Surface area 1.9318025491173E+14
Volume 1.1105213182454E+21
Height 9956914.8356711