21686893 (number)

21686893 is an odd 8-digits composite number following 21686892 and preceding 21686894. In scientific notation, it is written as 2.1686893 × 10^7. The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors. There are 21677308 positive integers (up to 21686893) that are relatively prime to 21686893.

Interesting facts

Basic properties

Name

Name twenty-one million six hundred eighty-six thousand eight hundred ninety-three

Notation

Scientific notation 2.1686893 × 10^7
Engineering notation 2.1686893 × 10^6

Prime Factorization of 21686893

Prime Factorization 3659 × 5927

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21686893
Product of the distinct prime numbers

The prime factorization of 21686893 is 3659 × 5927. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21686893)

Multiplication

n×y
n×2 43373786
n×3 65060679
n×4 86747572
n×5 108434465

Division

n÷y
n÷2 10843446.5
n÷3 7228964.3333333
n÷3 5421723.25
n÷5 4337378.6

Exponentiation

ny
n2 470321327993449
n3 1.0199808315812E+22
n4 2.2120215156552E+29
n5 4.7971873923712E+36

Nth Root

y√n
2√n 4656.9188311586
3√n 278.86827626992
4√n 68.241620959343
5√n 29.325097676514

Divisors of 21686893

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21686892
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21686893 can be divided by 4 positive divisors. The sum of these divisors (counting 21686893) is 1, the average is 0.25.

Base conversion 21686893

Base System Value
2 Binary 1010010101110101001101101
3 Ternary 1111210210211021
4 Quaternary 1102232221231
5 Quinary 21022440033
6 Senary 2052454141
8 Octal 122565155
10 Decimal 21686893
12 Duodecimal 731a351
16 Hexadecimal 14aea6d
20 Vigesimal 6fah4d
36 Base36 cwtpp

Cryptographic Hash Functions

md5 c803c75d98bd006c9577122f45f7029b
sha1 0a769364aa82439c816525b940fc8a4ddb6687e3
sha256 db9da3bc449bb2dc19c49d66ebbdfb145b7c1872f780fdfa003dc53d227bc70d
sha512 8a944d68a768d920a5b20f0d597d3fb3683b9ec413d6dfa47f5d48516f2c08f293a253def19af728d339b25733da39d6e4a0aea01020830d649a17654f0d971b
ripemd-160 ddbc79e40bcda82118dab1b42bdd9cd12359c38a

21686893 as geometric shapes

Circle

Radius = n
Diameter 43373786
Circumference 136262767.45598
Area 1.4775580288508E+15

Sphere

Radius = n
Volume 4.2724857163971E+22
Surface area 5.9102321154033E+15
Circumference 136262767.45598

Square

Length = n
Perimeter 86747572
Area 470321327993449
Diagonal 30669898.206334

Cube

Length = n
Surface area 2821927967960694
Volume 1.0199808315812E+22
Space diagonal 37562800.53431

Equilateral Triangle

Length = n
Perimeter 65060679
Area 2.0365510899198E+14
Altitude 18781400.267155

Triangular Pyramid

Length = n
Surface area 2.0365510899198E+14
Volume 1.2020589378189E+21
Height 10223299.402111