21087956 (number)

21087956 is an even 8-digits composite number following 21087955 and preceding 21087957. In scientific notation, it is written as 2.1087956 × 10^7. The sum of its digits is 38. It has a total of 4 prime factors and 12 positive divisors. There are 9923712 positive integers (up to 21087956) that are relatively prime to 21087956.

Interesting facts

Basic properties

Name

Name twenty-one million eighty-seven thousand nine hundred fifty-six

Notation

Scientific notation 2.1087956 × 10^7
Engineering notation 2.1087956 × 10^6

Prime Factorization of 21087956

Prime Factorization 2 × 2 × 17 × 310117

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10543978
Product of the distinct prime numbers

The prime factorization of 21087956 is 2 × 2 × 17 × 310117. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 4, 43, 59, 624, 837, 9323, 6114, 83039, 62173, 755806, 578862, 9660694, 2954689, 7642430, 9946475, 97210414, 234906277, 288360200, 2189349899

Basic calculations (n = 21087956)

Multiplication

n×y
n×2 42175912
n×3 63263868
n×4 84351824
n×5 105439780

Division

n÷y
n÷2 10543978
n÷3 7029318.6666667
n÷3 5271989
n÷5 4217591.2

Exponentiation

ny
n2 444701888257936
n3 9.3778538527003E+21
n4 1.9775976942017E+29
n5 4.1703493161028E+36

Nth Root

y√n
2√n 4592.1624535724
3√n 276.27706197354
4√n 67.765496040185
5√n 29.161301113732

Divisors of 21087956

1, 2, 4, 17, 34, 68, 310117, 620234, 1240468, 5271989, 10543978, 21087956

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21087955
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21087956 can be divided by 12 positive divisors. The sum of these divisors (counting 21087956) is 1, the average is 0.083333333333333.

Base conversion 21087956

Base System Value
2 Binary 1010000011100011011010100
3 Ternary 1110200101020102
4 Quaternary 1100130123110
5 Quinary 20344303311
6 Senary 2031553232
8 Octal 120343324
10 Decimal 21087956
12 Duodecimal 708b818
16 Hexadecimal 141c6d4
20 Vigesimal 6bfjhg
36 Base36 cjzkk

Cryptographic Hash Functions

md5 18ac24461c2d6459e2ee724828778248
sha1 1a04f62c29f8dd574df1b6d2448fb222315520f9
sha256 9ec42dda970b967a612c7cb0fa75eb344aa476ccf36526a1369dbaa0a94368fb
sha512 8857518faddc04655d097e26bacf9baa0b23b14284eeecaf41b2b107a8545d4b19d6557470153deb822b588fec1125a6c104366b53517f5209314683a2ef61db
ripemd-160 e97ab133361a82a2e89bcd212f988ddfa4c1fa55

21087956 as geometric shapes

Circle

Radius = n
Diameter 42175912
Circumference 132499535.29765
Area 1.3970721851886E+15

Sphere

Radius = n
Volume 3.9281862360109E+22
Surface area 5.5882887407546E+15
Circumference 132499535.29765

Square

Length = n
Perimeter 84351824
Area 444701888257936
Diagonal 29822873.377927

Cube

Length = n
Surface area 2668211329547616
Volume 9.3778538527003E+21
Space diagonal 36525411.219777

Equilateral Triangle

Length = n
Perimeter 63263868
Area 1.9256156617114E+14
Altitude 18262705.609888

Triangular Pyramid

Length = n
Surface area 1.9256156617114E+14
Volume 1.1051906753701E+21
Height 9940957.7926424