21887894 (number)

21887894 is an even 8-digits composite number following 21887893 and preceding 21887895. In scientific notation, it is written as 2.1887894 × 10^7. The sum of its digits is 47. It has a total of 3 prime factors and 8 positive divisors. There are 9380520 positive integers (up to 21887894) that are relatively prime to 21887894.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1887894 × 10^7
Engineering notation 2.1887894 × 10^6

Prime Factorization of 21887894

Prime Factorization 2 × 7 × 1563421

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21887894
Product of the distinct prime numbers

The prime factorization of 21887894 is 2 × 7 × 1563421. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21887894)

Multiplication

n×y
n×2 43775788
n×3 65663682
n×4 87551576
n×5 109439470

Division

n÷y
n÷2 10943947
n÷3 7295964.6666667
n÷3 5471973.5
n÷5 4377578.8

Exponentiation

ny
n2 479079903755236
n3 1.0486050150925E+22
n4 2.2951755418213E+29
n5 5.0236558970776E+36

Nth Root

y√n
2√n 4678.4499569836
3√n 279.72717472814
4√n 68.399195587255
5√n 29.379256124433

Divisors of 21887894

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21887893
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21887894 can be divided by 8 positive divisors. The sum of these divisors (counting 21887894) is 1, the average is 0.125.

Base conversion 21887894

Base System Value
2 Binary 1010011011111101110010110
3 Ternary 1112012000112202
4 Quaternary 1103133232112
5 Quinary 21100403034
6 Senary 2101044502
8 Octal 123375626
10 Decimal 21887894
12 Duodecimal 73b6732
16 Hexadecimal 14dfb96
20 Vigesimal 6gfjee
36 Base36 d14t2

Cryptographic Hash Functions

md5 26919be125f2e4f8a03d4a396d61a062
sha1 66bb5239574bc7925dc3b5b69606720261c5c0eb
sha256 dc017d60c804b7a814c1773fc5ad19804c3e22c3d769c009474e64937bd6af19
sha512 35e714983a4a8a3025dedbb118a481fcccf3121c76c162c3f706f831e31b84d2b8fe903878b81e29e5fbad684af2a6bd1a80a12287a5e7b15ef7ed512e1dcf93
ripemd-160 1ce4436ddcf3a7bb637181b57deaa4e109f74ef4

21887894 as geometric shapes

Circle

Radius = n
Diameter 43775788
Circumference 137525693.9859
Area 1.50507390612E+15

Sphere

Radius = n
Volume 4.3923864159093E+22
Surface area 6.0202956244798E+15
Circumference 137525693.9859

Square

Length = n
Perimeter 87551576
Area 479079903755236
Diagonal 30954156.546585

Cube

Length = n
Surface area 2874479422531416
Volume 1.0486050150925E+22
Space diagonal 37910944.478682

Equilateral Triangle

Length = n
Perimeter 65663682
Area 2.0744768354732E+14
Altitude 18955472.239341

Triangular Pyramid

Length = n
Surface area 2.0744768354732E+14
Volume 1.2357928615969E+21
Height 10318052.182195