21961390 (number)

21961390 is an even 8-digits composite number following 21961389 and preceding 21961391. In scientific notation, it is written as 2.1961390 × 10^7. The sum of its digits is 31. It has a total of 5 prime factors and 32 positive divisors. There are 7798560 positive integers (up to 21961390) that are relatively prime to 21961390.

Interesting facts

Basic properties

Name

Name twenty-one million nine hundred sixty-one thousand three hundred ninety

Notation

Scientific notation 2.1961390 × 10^7
Engineering notation 2.1961390 × 10^6

Prime Factorization of 21961390

Prime Factorization 2 × 5 × 11 × 43 × 4643

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 21961390
Product of the distinct prime numbers

The prime factorization of 21961390 is 2 × 5 × 11 × 43 × 4643. Since it has a total of 5 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21961390)

Multiplication

n×y
n×2 43922780
n×3 65884170
n×4 87845560
n×5 109806950

Division

n÷y
n÷2 10980695
n÷3 7320463.3333333
n÷3 5490347.5
n÷5 4392278

Exponentiation

ny
n2 482302650732100
n3 1.0592036610761E+22
n4 2.3261584690321E+29
n5 5.1085673340217E+36

Nth Root

y√n
2√n 4686.2981125831
3√n 280.0399177783
4√n 68.456541780776
5√n 29.398959833363

Divisors of 21961390

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21961389
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21961390 can be divided by 32 positive divisors. The sum of these divisors (counting 21961390) is 1, the average is 0.03125.

Base conversion 21961390

Base System Value
2 Binary 1010011110001101010101110
3 Ternary 1112022202100211
4 Quaternary 1103301222232
5 Quinary 21110231030
6 Senary 2102413034
8 Octal 123615256
10 Decimal 21961390
12 Duodecimal 743117a
16 Hexadecimal 14f1aae
20 Vigesimal 6h539a
36 Base36 d2pim

Cryptographic Hash Functions

md5 cbe577cb37f9e08368e613a0cf0ad0fa
sha1 0ab58ce78c14e3f8e6972701b882138adc586716
sha256 185bb9f9216976fa0a90655fcbc0b4616ebc06bac3c068f9b8dacf94e26cd533
sha512 431076e7bc5856fca860b17f99c39287e346de2e1e462fef363aa253f3db3cdea38c31f9a256e015113b8dbdd3cf35702ebf99501fa198996a92a31322a7e434
ripemd-160 b33775ce7bd565c6e2bbb2c7e143dbd8f7824803

21961390 as geometric shapes

Circle

Radius = n
Diameter 43922780
Circumference 137987482.97324
Area 1.5151984643468E+15

Sphere

Radius = n
Volume 4.4367819203896E+22
Surface area 6.0607938573874E+15
Circumference 137987482.97324

Square

Length = n
Perimeter 87845560
Area 482302650732100
Diagonal 31058095.586565

Cube

Length = n
Surface area 2893815904392600
Volume 1.0592036610761E+22
Space diagonal 38038243.284835

Equilateral Triangle

Length = n
Perimeter 65884170
Area 2.0884317392329E+14
Altitude 19019121.642418

Triangular Pyramid

Length = n
Surface area 2.0884317392329E+14
Volume 1.2482834856743E+21
Height 10352698.528855