21490988 (number)

21490988 is an even 8-digits composite number following 21490987 and preceding 21490989. In scientific notation, it is written as 2.1490988 × 10^7. The sum of its digits is 41. It has a total of 4 prime factors and 12 positive divisors. There are 10698912 positive integers (up to 21490988) that are relatively prime to 21490988.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety thousand nine hundred eighty-eight

Notation

Scientific notation 2.1490988 × 10^7
Engineering notation 2.1490988 × 10^6

Prime Factorization of 21490988

Prime Factorization 2 × 2 × 233 × 23059

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10745494
Product of the distinct prime numbers

The prime factorization of 21490988 is 2 × 2 × 233 × 23059. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 8, 84, 72, 792, 30, 3122, 9598, 67320, 54516, 862947, 423892, 6338907, 9144773, 66901836, 94368511, 229668242, 310086437, 5569910074, 5238596419

Basic calculations (n = 21490988)

Multiplication

n×y
n×2 42981976
n×3 64472964
n×4 85963952
n×5 107454940

Division

n÷y
n÷2 10745494
n÷3 7163662.6666667
n÷3 5372747
n÷5 4298197.6

Exponentiation

ny
n2 461862565216144
n3 9.9258828467094E+21
n4 2.1331702914804E+29
n5 4.5843937136161E+36

Nth Root

y√n
2√n 4635.83735694
3√n 278.02603141157
4√n 68.086983755634
5√n 29.271924500873

Divisors of 21490988

1, 2, 4, 233, 466, 932, 23059, 46118, 92236, 5372747, 10745494, 21490988

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 -21490987
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 21490988 can be divided by 12 positive divisors. The sum of these divisors (counting 21490988) is 1, the average is 0.083333333333333.

Base conversion 21490988

Base System Value
2 Binary 1010001111110110100101100
3 Ternary 1111102212002112
4 Quaternary 1101332310230
5 Quinary 21000202423
6 Senary 2044343152
8 Octal 121766454
10 Decimal 21490988
12 Duodecimal 7244ab8
16 Hexadecimal 147ed2c
20 Vigesimal 6e6798
36 Base36 csmjw

Cryptographic Hash Functions

md5 a8753751e87dea283681ba3ea9f9dfb1
sha1 192168c729edd31abfc2ec0580b2c4ac10668ac4
sha256 38fd21345920df5b1f10b44d6aa56faf6e814ecc0fd50d272f844b611cd61b3d
sha512 e2101d01d29af2a4e4be63c5b4005320ad2d2aa1bbc925057573daae6970c5aec9278c994add1aa3467b9845bcadb812bd1b41cc81866a4a2fc603828ab80be9
ripemd-160 41bc454cabf4e71afda9c26f7a2bcbe02637e4c7

21490988 as geometric shapes

Circle

Radius = n
Diameter 42981976
Circumference 135031860.03837
Area 1.4509840418512E+15

Sphere

Radius = n
Volume 4.1577440842153E+22
Surface area 5.8039361674047E+15
Circumference 135031860.03837

Square

Length = n
Perimeter 85963952
Area 461862565216144
Diagonal 30392846.698397

Cube

Length = n
Surface area 2771175391296864
Volume 9.9258828467094E+21
Space diagonal 37223483.120853

Equilateral Triangle

Length = n
Perimeter 64472964
Area 1.9999235726711E+14
Altitude 18611741.560427

Triangular Pyramid

Length = n
Surface area 1.9999235726711E+14
Volume 1.1697765116952E+21
Height 10130948.899466