21000988 (number)

21000988 is an even 8-digits composite number following 21000987 and preceding 21000989. In scientific notation, it is written as 2.1000988 × 10^7. The sum of its digits is 28. It has a total of 5 prime factors and 24 positive divisors. There are 10075968 positive integers (up to 21000988) that are relatively prime to 21000988.

Interesting facts

Basic properties

Name

Name twenty-one million nine hundred eighty-eight

Notation

Scientific notation 2.1000988 × 10^7
Engineering notation 2.1000988 × 10^6

Prime Factorization of 21000988

Prime Factorization 2 × 2 × 29 × 919 × 197

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 10500494
Product of the distinct prime numbers

The prime factorization of 21000988 is 2 × 2 × 29 × 919 × 197. Since it has a total of 5 prime factors.

Most popular turbo-numbers

8, 8, 98, 90, 735, 442, 1493, 1081, 22937, 51349, 670020, 764321, 7100103, 365465, 40860100, 20463005, 994299676, 884890318, 9677421318, 4018557554

Basic calculations (n = 21000988)

Multiplication

n×y
n×2 42001976
n×3 63002964
n×4 84003952
n×5 105004940

Division

n÷y
n÷2 10500494
n÷3 7000329.3333333
n÷3 5250247
n÷5 4200197.6

Exponentiation

ny
n2 441041496976144
n3 9.262307185498E+21
n4 1.9451760205496E+29
n5 4.0850618265449E+36

Nth Root

y√n
2√n 4582.6834933257
3√n 275.89674426405
4√n 67.695520481977
5√n 29.137208745282

Divisors of 21000988

1, 2, 4, 29, 58, 116, 197, 394, 788, 919, 1838, 3676, 5713, 11426, 22852, 26651, 53302, 106604, 181043, 362086, 724172, 5250247, 10500494, 21000988

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21000987
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21000988 can be divided by 24 positive divisors. The sum of these divisors (counting 21000988) is 1, the average is 0.041666666666667.

Base conversion 21000988

Base System Value
2 Binary 1010000000111001100011100
3 Ternary 1110111221221101
4 Quaternary 1100013030130
5 Quinary 20334012423
6 Senary 2030042444
8 Octal 120071434
10 Decimal 21000988
12 Duodecimal 7049424
16 Hexadecimal 140731c
20 Vigesimal 6b5298
36 Base36 ci4gs

Cryptographic Hash Functions

md5 7cc106ec3bcfeb5534a6ec1a40f65867
sha1 845497fee70982bd9f9e7b40039cf28d5033c909
sha256 56e70bed1f244b71f433e9c4ebd69ce1885594ae84610aeeb4d1e14a2ff698e6
sha512 585ae0ec5ef53a91df14240e7c397f8e64aae00eb5b47f887bcef9e325e6033dce14f3ac4ae54635926c1256fd6e70a5a1780c269f9d67ca55a3cfc8d43d2dde
ripemd-160 ca344bf6bea55df2c29d9c86f57d293035652295

21000988 as geometric shapes

Circle

Radius = n
Diameter 42001976
Circumference 131953099.23785
Area 1.3855727268285E+15

Sphere

Radius = n
Volume 3.8797861612337E+22
Surface area 5.542290907314E+15
Circumference 131953099.23785

Square

Length = n
Perimeter 84003952
Area 441041496976144
Diagonal 29699882.052835

Cube

Length = n
Surface area 2646248981856864
Volume 9.262307185498E+21
Space diagonal 36374778.225144

Equilateral Triangle

Length = n
Perimeter 63002964
Area 1.9097657025223E+14
Altitude 18187389.112572

Triangular Pyramid

Length = n
Surface area 1.9097657025223E+14
Volume 1.0915733700498E+21
Height 9899960.6842782