21493390 (number)

21493390 is an even 8-digits composite number following 21493389 and preceding 21493391. In scientific notation, it is written as 2.1493390 × 10^7. The sum of its digits is 31. It has a total of 4 prime factors and 16 positive divisors. There are 8479296 positive integers (up to 21493390) that are relatively prime to 21493390.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-three thousand three hundred ninety

Notation

Scientific notation 2.1493390 × 10^7
Engineering notation 2.1493390 × 10^6

Prime Factorization of 21493390

Prime Factorization 2 × 5 × 73 × 29443

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21493390
Product of the distinct prime numbers

The prime factorization of 21493390 is 2 × 5 × 73 × 29443. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 4, 63, 26, 702, 43, 1856, 5516, 7599, 81278, 682354, 182565, 6490292, 5477833, 20923768, 76925796, 469410587, 27414542, 6461944940, 381159668

Basic calculations (n = 21493390)

Multiplication

n×y
n×2 42986780
n×3 64480170
n×4 85973560
n×5 107466950

Division

n÷y
n÷2 10746695
n÷3 7164463.3333333
n÷3 5373347.5
n÷5 4298678

Exponentiation

ny
n2 461965813692100
n3 9.9292114003516E+21
n4 2.134124130202E+29
n5 4.5869562238843E+36

Nth Root

y√n
2√n 4636.0964183244
3√n 278.03638914305
4√n 68.088886158641
5√n 29.27257880322

Divisors of 21493390

1, 2, 5, 10, 73, 146, 365, 730, 29443, 58886, 147215, 294430, 2149339, 4298678, 10746695, 21493390

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21493389
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21493390 can be divided by 16 positive divisors. The sum of these divisors (counting 21493390) is 1, the average is 0.0625.

Base conversion 21493390

Base System Value
2 Binary 1010001111111011010001110
3 Ternary 1111102222101111
4 Quaternary 1101333122032
5 Quinary 21000242030
6 Senary 2044402234
8 Octal 121773216
10 Decimal 21493390
12 Duodecimal 724637a
16 Hexadecimal 147f68e
20 Vigesimal 6e6d9a
36 Base36 csoem

Cryptographic Hash Functions

md5 c1fba235c3ad9bff2211d5baef1683b1
sha1 74cca708583db73ce4da647cda47cbc523df98c2
sha256 166998bdde327f597cf72570355e0cc49dab054a7710a8035ae88d3d7eef7668
sha512 a18700ce042363c19a30cbeb611acde5076912305b288fb9820a0cb8a040b9fcbc09ceec20b0ab0ce6f62a49c9dc3c657f70d38ccece1f0308c3980b4cf9396a
ripemd-160 9a0c1f131fc9437a9f871f456cff58824885e159

21493390 as geometric shapes

Circle

Radius = n
Diameter 42986780
Circumference 135046952.24948
Area 1.4513084065047E+15

Sphere

Radius = n
Volume 4.1591383455046E+22
Surface area 5.8052336260189E+15
Circumference 135046952.24948

Square

Length = n
Perimeter 85973560
Area 461965813692100
Diagonal 30396243.639374

Cube

Length = n
Surface area 2771794882152600
Volume 9.9292114003516E+21
Space diagonal 37227643.506893

Equilateral Triangle

Length = n
Perimeter 64480170
Area 2.0003706516865E+14
Altitude 18613821.753446

Triangular Pyramid

Length = n
Surface area 2.0003706516865E+14
Volume 1.1701687855039E+21
Height 10132081.213125