21087984 (number)

21087984 is an even 8-digits composite number following 21087983 and preceding 21087985. In scientific notation, it is written as 2.1087984 × 10^7. The sum of its digits is 39. It has a total of 7 prime factors and 40 positive divisors. There are 7006720 positive integers (up to 21087984) that are relatively prime to 21087984.

Interesting facts

Basic properties

Name

Name twenty-one million eighty-seven thousand nine hundred eighty-four

Notation

Scientific notation 2.1087984 × 10^7
Engineering notation 2.1087984 × 10^6

Prime Factorization of 21087984

Prime Factorization 2 × 2 × 2 × 2 × 3 × 461 × 953

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 2635998
Product of the distinct prime numbers

The prime factorization of 21087984 is 2 × 2 × 2 × 2 × 3 × 461 × 953. Since it has a total of 7 prime factors.

Most popular turbo-numbers

7, 1, 6, 35, 436, 246, 818, 7614, 80751, 74673, 425821, 678492, 6602916, 5253255, 78760851, 87538165, 947920053, 713509933, 9053927114, 2248303525

Basic calculations (n = 21087984)

Multiplication

n×y
n×2 42175968
n×3 63263952
n×4 84351936
n×5 105439920

Division

n÷y
n÷2 10543992
n÷3 7029328
n÷3 5271996
n÷5 4217596.8

Exponentiation

ny
n2 444703069184256
n3 9.3778912077085E+21
n4 1.977608197419E+29
n5 4.170377002544E+36

Nth Root

y√n
2√n 4592.165502244
3√n 276.27718425114
4√n 67.765518534458
5√n 29.16130885764

Divisors of 21087984

1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 461, 922, 953, 1383, 1844, 1906, 2766, 2859, 3688, 3812, 5532, 5718, 7376, 7624, 11064, 11436, 15248, 22128, 22872, 45744, 439333, 878666, 1317999, 1757332, 2635998, 3514664, 5271996, 7029328, 10543992, 21087984

40 divisors

τ Total Divisors 40
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21087983
Sum of the proper positive divisors of n
A Arithmetic Mean 0.025
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 40
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21087984 can be divided by 40 positive divisors. The sum of these divisors (counting 21087984) is 1, the average is 0.025.

Base conversion 21087984

Base System Value
2 Binary 1010000011100011011110000
3 Ternary 1110200101021110
4 Quaternary 1100130123300
5 Quinary 20344303414
6 Senary 2031553320
8 Octal 120343360
10 Decimal 21087984
12 Duodecimal 708b840
16 Hexadecimal 141c6f0
20 Vigesimal 6bfjj4
36 Base36 cjzlc

Cryptographic Hash Functions

md5 1dd3fbc815f6ca2c1a7ed790c02ce799
sha1 a9fccd94f430ca815cc8495f0caa6c9045f364a5
sha256 c923e33c06d07969ec5f915c458dccb79cbc6dd2fe1daec1ab8fd741d840aef2
sha512 561e1232f461377890f0b7b689262dc1f6df60bce9c1b85f96dcb1322fbf1598ff7253dc3220615aaef256d0fc42e3f45193f40103214adb1907ab5cc404861a
ripemd-160 c58b7a766e090890c8f26ee468cabfdc804eb633

21087984 as geometric shapes

Circle

Radius = n
Diameter 42175968
Circumference 132499711.22684
Area 1.3970758951781E+15

Sphere

Radius = n
Volume 3.9282018832402E+22
Surface area 5.5883035807124E+15
Circumference 132499711.22684

Square

Length = n
Perimeter 84351936
Area 444703069184256
Diagonal 29822912.975907

Cube

Length = n
Surface area 2668218415105536
Volume 9.3778912077085E+21
Space diagonal 36525459.7172

Equilateral Triangle

Length = n
Perimeter 63263952
Area 1.9256207752724E+14
Altitude 18262729.8586

Triangular Pyramid

Length = n
Surface area 1.9256207752724E+14
Volume 1.1051950777001E+21
Height 9940970.9919689