21081279 (number)

21081279 is an odd 8-digits composite number following 21081278 and preceding 21081280. In scientific notation, it is written as 2.1081279 × 10^7. The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors. There are 13226976 positive integers (up to 21081279) that are relatively prime to 21081279.

Interesting facts

Basic properties

Name

Name twenty-one million eighty-one thousand two hundred seventy-nine

Notation

Scientific notation 2.1081279 × 10^7
Engineering notation 2.1081279 × 10^6

Prime Factorization of 21081279

Prime Factorization 3 × 19 × 163 × 2269

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21081279
Product of the distinct prime numbers

The prime factorization of 21081279 is 3 × 19 × 163 × 2269. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 5, 30, 5, 426, 373, 2799, 2087, 24313, 38491, 338443, 757409, 8151295, 1526501, 15087424, 57608682, 525932306, 111933620, 1517477915, 1828654493

Basic calculations (n = 21081279)

Multiplication

n×y
n×2 42162558
n×3 63243837
n×4 84325116
n×5 105406395

Division

n÷y
n÷2 10540639.5
n÷3 7027093
n÷3 5270319.75
n÷5 4216255.8

Exponentiation

ny
n2 444420324275841
n3 9.3689488493295E+21
n4 1.9750942462944E+29
n5 4.1637512857428E+36

Nth Root

y√n
2√n 4591.4353964746
3√n 276.24790004068
4√n 67.760131319786
5√n 29.159454233244

Divisors of 21081279

1, 3, 19, 57, 163, 489, 2269, 3097, 6807, 9291, 43111, 129333, 369847, 1109541, 7027093, 21081279

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 -21081278
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 21081279 can be divided by 16 positive divisors. The sum of these divisors (counting 21081279) is 1, the average is 0.0625.

Base conversion 21081279

Base System Value
2 Binary 1010000011010110010111111
3 Ternary 1110200001002010
4 Quaternary 1100122302333
5 Quinary 20344100104
6 Senary 2031502303
8 Octal 120326277
10 Decimal 21081279
12 Duodecimal 7087993
16 Hexadecimal 141acbf
20 Vigesimal 6bf33j
36 Base36 cjuf3

Cryptographic Hash Functions

md5 53c78dc8bae9b3c04dfb043a823cb640
sha1 49bfb3e789aaf19165c6169701958dbae08284cf
sha256 59f61405f4f4a0c637dc60c74c21345b0c71ea734f191ee88a08f60f9a1b0e53
sha512 15a6d143ebb5b481a8733a7a08e1dfd9e14aeb1bbe5f4ea9a10665bd26d670d0478ed5c62ee21a9eaf21dc394d7dab1b1b1ea1dfef8d27a281bacea4d59838af
ripemd-160 d4ba6be06a2d915d1230ce46e43494fe3c315487

21081279 as geometric shapes

Circle

Radius = n
Diameter 42162558
Circumference 132457582.46935
Area 1.396187625851E+15

Sphere

Radius = n
Volume 3.9244561169216E+22
Surface area 5.5847505034039E+15
Circumference 132457582.46935

Square

Length = n
Perimeter 84325116
Area 444420324275841
Diagonal 29813430.673971

Cube

Length = n
Surface area 2666521945655046
Volume 9.3689488493295E+21
Space diagonal 36513846.316535

Equilateral Triangle

Length = n
Perimeter 63243837
Area 1.924396453905E+14
Altitude 18256923.158267

Triangular Pyramid

Length = n
Surface area 1.924396453905E+14
Volume 1.1041412106585E+21
Height 9937810.224657