21492988 (number)

21492988 is an even 8-digits composite number following 21492987 and preceding 21492989. In scientific notation, it is written as 2.1492988 × 10^7. The sum of its digits is 43. It has a total of 6 prime factors and 30 positive divisors. There are 9742920 positive integers (up to 21492988) that are relatively prime to 21492988.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1492988 × 10^7
Engineering notation 2.1492988 × 10^6

Prime Factorization of 21492988

Prime Factorization 2 × 2 × 11 × 11 × 121 × 367

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 976954
Product of the distinct prime numbers

The prime factorization of 21492988 is 2 × 2 × 11 × 11 × 121 × 367. Since it has a total of 6 prime factors.

Most popular turbo-numbers

2, 9, 5, 39, 872, 197, 4688, 725, 84439, 98483, 562104, 324020, 72820, 6922236, 22991849, 266579, 663699471, 482832960, 2643128185, 4218375493

Basic calculations (n = 21492988)

Multiplication

n×y
n×2 42985976
n×3 64478964
n×4 85971952
n×5 107464940

Division

n÷y
n÷2 10746494
n÷3 7164329.3333333
n÷3 5373247
n÷5 4298597.6

Exponentiation

ny
n2 461948533168144
n3 9.9286542800005E+21
n4 2.133964472962E+29
n5 4.5865272809799E+36

Nth Root

y√n
2√n 4636.0530626817
3√n 278.03465572136
4√n 68.08856778257
5√n 29.272469302907

Divisors of 21492988

1, 2, 4, 11, 22, 44, 121, 242, 367, 484, 734, 1331, 1468, 2662, 4037, 5324, 8074, 14641, 16148, 29282, 44407, 58564, 88814, 177628, 488477, 976954, 1953908, 5373247, 10746494, 21492988

30 divisors

τ Total Divisors 30
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21492987
Sum of the proper positive divisors of n
A Arithmetic Mean 0.033333333333333
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 30
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21492988 can be divided by 30 positive divisors. The sum of these divisors (counting 21492988) is 1, the average is 0.033333333333333.

Base conversion 21492988

Base System Value
2 Binary 1010001111111010011111100
3 Ternary 1111102221211121
4 Quaternary 1101333103330
5 Quinary 21000233423
6 Senary 2044400324
8 Octal 121772374
10 Decimal 21492988
12 Duodecimal 72460a4
16 Hexadecimal 147f4fc
20 Vigesimal 6e6c98
36 Base36 cso3g

Cryptographic Hash Functions

md5 9032fa1f0e78810243844ef0545c764a
sha1 fda3856bffbad7bf250c47efccfd919fe09ac648
sha256 ced8be935d6030e6586e24caba37676ca5d0f4b41e90c3d1059645a12df05c47
sha512 4cf45020d23beaa24fa927fd763fdf7d0a595f5e83ade132c407844ac1a4e0cad02230d16ddc273f5b79a4b6bb24b4233d7f3ea97e454af3e2c5041bf82cbbf6
ripemd-160 02f6bd914910433b692c5039e81decb203b6a7df

21492988 as geometric shapes

Circle

Radius = n
Diameter 42985976
Circumference 135044426.40899
Area 1.4512541181376E+15

Sphere

Radius = n
Volume 4.1589049794777E+22
Surface area 5.8050164725505E+15
Circumference 135044426.40899

Square

Length = n
Perimeter 85971952
Area 461948533168144
Diagonal 30395675.125522

Cube

Length = n
Surface area 2771691199008864
Volume 9.9286542800005E+21
Space diagonal 37226947.222468

Equilateral Triangle

Length = n
Perimeter 64478964
Area 2.0002958248229E+14
Altitude 18613473.611234

Triangular Pyramid

Length = n
Surface area 2.0002958248229E+14
Volume 1.1701031282409E+21
Height 10131891.708507