21686870 (number)

21686870 is an even 8-digits composite number following 21686869 and preceding 21686871. In scientific notation, it is written as 2.1686870 × 10^7. The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors. There are 8674744 positive integers (up to 21686870) that are relatively prime to 21686870.

Interesting facts

Basic properties

Name

Name twenty-one million six hundred eighty-six thousand eight hundred seventy

Notation

Scientific notation 2.1686870 × 10^7
Engineering notation 2.1686870 × 10^6

Prime Factorization of 21686870

Prime Factorization 2 × 5 × 2168687

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21686870
Product of the distinct prime numbers

The prime factorization of 21686870 is 2 × 5 × 2168687. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21686870)

Multiplication

n×y
n×2 43373740
n×3 65060610
n×4 86747480
n×5 108434350

Division

n÷y
n÷2 10843435
n÷3 7228956.6666667
n÷3 5421717.5
n÷5 4337374

Exponentiation

ny
n2 470320330396900
n3 1.0199775863675E+22
n4 2.2120121318465E+29
n5 4.7971619541778E+36

Nth Root

y√n
2√n 4656.916361714
3√n 278.86817768545
4√n 68.24160286595
5√n 29.325091456374

Divisors of 21686870

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 -21686869
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 21686870 can be divided by 8 positive divisors. The sum of these divisors (counting 21686870) is 1, the average is 0.125.

Base conversion 21686870

Base System Value
2 Binary 1010010101110101001010110
3 Ternary 1111210210210102
4 Quaternary 1102232221112
5 Quinary 21022434440
6 Senary 2052454102
8 Octal 122565126
10 Decimal 21686870
12 Duodecimal 731a332
16 Hexadecimal 14aea56
20 Vigesimal 6fah3a
36 Base36 cwtp2

Cryptographic Hash Functions

md5 6266f8a9fa9390adcf9dbf17dcb7245c
sha1 4dc45f4bdccd171121debd86eb138df250f8fb5a
sha256 1d86c9841f4fb57562e7defe8d3541fc0a22ba7afc4e6f1064350c32514a584d
sha512 4e72c844e39fe854acdf58d82d65432293593437101f44d3f558847fe617537d14f7c2b75fd7e5a9f7da7acb31c4d8dfe67ac649f5a7263759e4b3955ad840a9
ripemd-160 f8cdd51bb21e47a64d240633dcf9b2d65b2cded0

21686870 as geometric shapes

Circle

Radius = n
Diameter 43373740
Circumference 136262622.94271
Area 1.4775548948088E+15

Sphere

Radius = n
Volume 4.2724721228777E+22
Surface area 5.9102195792353E+15
Circumference 136262622.94271

Square

Length = n
Perimeter 86747480
Area 470320330396900
Diagonal 30669865.679422

Cube

Length = n
Surface area 2821921982381400
Volume 1.0199775863675E+22
Space diagonal 37562760.697141

Equilateral Triangle

Length = n
Perimeter 65060610
Area 2.0365467702E+14
Altitude 18781380.348571

Triangular Pyramid

Length = n
Surface area 2.0365467702E+14
Volume 1.2020551132979E+21
Height 10223288.559807