21898945 (number)

21898945 is an odd 8-digits composite number following 21898944 and preceding 21898946. In scientific notation, it is written as 2.1898945 × 10^7. The sum of its digits is 46. It has a total of 3 prime factors and 8 positive divisors. There are 17146224 positive integers (up to 21898945) that are relatively prime to 21898945.

Interesting facts

Basic properties

Name

Name twenty-one million eight hundred ninety-eight thousand nine hundred forty-five

Notation

Scientific notation 2.1898945 × 10^7
Engineering notation 2.1898945 × 10^6

Prime Factorization of 21898945

Prime Factorization 5 × 47 × 93187

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21898945
Product of the distinct prime numbers

The prime factorization of 21898945 is 5 × 47 × 93187. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21898945)

Multiplication

n×y
n×2 43797890
n×3 65696835
n×4 87595780
n×5 109494725

Division

n÷y
n÷2 10949472.5
n÷3 7299648.3333333
n÷3 5474736.25
n÷5 4379789

Exponentiation

ny
n2 479563792113025
n3 1.0501941107475E+22
n4 2.2998143070582E+29
n5 5.0363507020482E+36

Nth Root

y√n
2√n 4679.6308615103
3√n 279.77424404879
4√n 68.40782748714
5√n 29.382222189694

Divisors of 21898945

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 -21898944
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 21898945 can be divided by 8 positive divisors. The sum of these divisors (counting 21898945) is 1, the average is 0.125.

Base conversion 21898945

Base System Value
2 Binary 1010011100010011011000001
3 Ternary 1112012120201001
4 Quaternary 1103202123001
5 Quinary 21101231240
6 Senary 2101212001
8 Octal 123423301
10 Decimal 21898945
12 Duodecimal 7401001
16 Hexadecimal 14e26c1
20 Vigesimal 6gh775
36 Base36 d1dc1

Cryptographic Hash Functions

md5 e8858930050931fc92b5ab407cc6aa7b
sha1 f4cf00890f12ca9b75425d85e22e056ce84bf8e7
sha256 158836a37cf16946edf350025dd231522bc12a536cae845f6d07d7c31116854f
sha512 7d91f333acf146c4218271bda9128ecf4e9aa9b10e3bce75be637d4875949a79c4051bf48e6d55a551c7f98c757d370a7c0fb4fe77d334d9f87ac880f94fd7a6
ripemd-160 25c703ff3fc2e6241a1931f2b783138543b81d63

21898945 as geometric shapes

Circle

Radius = n
Diameter 43797890
Circumference 137595129.46673
Area 1.5065940862299E+15

Sphere

Radius = n
Volume 4.3990428042233E+22
Surface area 6.0263763449198E+15
Circumference 137595129.46673

Square

Length = n
Perimeter 87595780
Area 479563792113025
Diagonal 30969785.020662

Cube

Length = n
Surface area 2877382752678150
Volume 1.0501941107475E+22
Space diagonal 37930085.372156

Equilateral Triangle

Length = n
Perimeter 65696835
Area 2.0765721335254E+14
Altitude 18965042.686078

Triangular Pyramid

Length = n
Surface area 2.0765721335254E+14
Volume 1.2376656287862E+21
Height 10323261.673554