20210918 (number)

20210918 is an even 8-digits composite number following 20210917 and preceding 20210919. In scientific notation, it is written as 2.0210918 × 10^7. The sum of its digits is 23. It has a total of 4 prime factors and 16 positive divisors. There are 7995456 positive integers (up to 20210918) that are relatively prime to 20210918.

Interesting facts

Basic properties

Name

Name twenty million two hundred ten thousand nine hundred eighteen

Notation

Scientific notation 2.0210918 × 10^7
Engineering notation 2.0210918 × 10^6

Prime Factorization of 20210918

Prime Factorization 2 × 7 × 13 × 111049

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20210918
Product of the distinct prime numbers

The prime factorization of 20210918 is 2 × 7 × 13 × 111049. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 1, 68, 10, 429, 337, 7825, 3653, 58003, 20883, 195346, 994360, 7391024, 270053, 23774102, 90107425, 709851988, 760060211, 3570255695, 1771019740

Basic calculations (n = 20210918)

Multiplication

n×y
n×2 40421836
n×3 60632754
n×4 80843672
n×5 101054590

Division

n÷y
n÷2 10105459
n÷3 6736972.6666667
n÷3 5052729.5
n÷5 4042183.6

Exponentiation

ny
n2 408481206402724
n3 8.2557801671465E+21
n4 1.6685689598422E+29
n5 3.3723310424717E+36

Nth Root

y√n
2√n 4495.6554583286
3√n 272.39262610287
4√n 67.049649203621
5√n 28.914601284302

Divisors of 20210918

1, 2, 7, 13, 14, 26, 91, 182, 111049, 222098, 777343, 1443637, 1554686, 2887274, 10105459, 20210918

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 -20210917
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 20210918 can be divided by 16 positive divisors. The sum of these divisors (counting 20210918) is 1, the average is 0.0625.

Base conversion 20210918

Base System Value
2 Binary 1001101000110010011100110
3 Ternary 1102000211011112
4 Quaternary 1031012103212
5 Quinary 20133222133
6 Senary 2001105022
8 Octal 115062346
10 Decimal 20210918
12 Duodecimal 6928172
16 Hexadecimal 13464e6
20 Vigesimal 66675i
36 Base36 c16ue

Cryptographic Hash Functions

md5 b26779f752ff18a80fedd4d384401ff3
sha1 94595bd787e1ca5f4b85c8136f45db44eed21ad3
sha256 24a292cd23bb3d52010da0c974e51f79a06cae1a97399995dfcd10fbb8c3d32a
sha512 256069bcaeda3203e540839a30ffa42dc60c261c5f7ac40748a3426e001172733980a6e2c552c048540371589abd31d86437a68db3e256f1d5f594ea3601bf71
ripemd-160 bd84bc2fec9c3b9a4909c139a49d27a91e35fd50

20210918 as geometric shapes

Circle

Radius = n
Diameter 40421836
Circumference 126988943.02221
Area 1.2832815571643E+15

Sphere

Radius = n
Volume 3.4581731097013E+22
Surface area 5.1331262286572E+15
Circumference 126988943.02221

Square

Length = n
Perimeter 80843672
Area 408481206402724
Diagonal 28582554.343611

Cube

Length = n
Surface area 2450887238416344
Volume 8.2557801671465E+21
Space diagonal 35006336.843608

Equilateral Triangle

Length = n
Perimeter 60632754
Area 1.7687755085664E+14
Altitude 17503168.421804

Triangular Pyramid

Length = n
Surface area 1.7687755085664E+14
Volume 9.7295302336245E+20
Height 9527518.1145368