21493878 (number)

21493878 is an even 8-digits composite number following 21493877 and preceding 21493879. In scientific notation, it is written as 2.1493878 × 10^7. The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors. There are 6123648 positive integers (up to 21493878) that are relatively prime to 21493878.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1493878 × 10^7
Engineering notation 2.1493878 × 10^6

Prime Factorization of 21493878

Prime Factorization 2 × 21 × 593 × 863

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21493878
Product of the distinct prime numbers

The prime factorization of 21493878 is 2 × 21 × 593 × 863. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 10, 69, 40, 647, 512, 8291, 126, 48226, 2186, 107697, 73950, 8420151, 6384369, 64178684, 90250530, 439850814, 160379676, 5363320130, 9235333787

Basic calculations (n = 21493878)

Multiplication

n×y
n×2 42987756
n×3 64481634
n×4 85975512
n×5 107469390

Division

n÷y
n÷2 10746939
n÷3 7164626
n÷3 5373469.5
n÷5 4298775.6

Exponentiation

ny
n2 461986791478884
n3 9.9298877336586E+21
n4 2.1343179550095E+29
n5 4.5874769738185E+36

Nth Root

y√n
2√n 4636.14904851
3√n 278.0384933672
4√n 68.089272639014
5√n 29.272711726772

Divisors of 21493878

1, 2, 21, 42, 593, 863, 1186, 1726, 12453, 18123, 24906, 36246, 511759, 1023518, 10746939, 21493878

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 -21493877
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 21493878 can be divided by 16 positive divisors. The sum of these divisors (counting 21493878) is 1, the average is 0.0625.

Base conversion 21493878

Base System Value
2 Binary 1010001111111100001110110
3 Ternary 1111110000001120
4 Quaternary 1101333201312
5 Quinary 21000301003
6 Senary 2044404410
8 Octal 121774166
10 Decimal 21493878
12 Duodecimal 7246706
16 Hexadecimal 147f876
20 Vigesimal 6e6edi
36 Base36 csos6

Cryptographic Hash Functions

md5 d1697eff31cdb92e2ccf17d5a50a0823
sha1 60d98f7a230a3b48e9ccd56efaf9b6c4b5ae8f80
sha256 ce67a779e63dcbda1d26b67ef19999c97a07acd628c77cc14e28ac406f67dda6
sha512 05befcc01f5a9447fbb42d8d154d53c088c61882814eb2348ef5c2677d718cd86e72866ab1f03f821d94e4a49c4464680861bcdabba67f40ada800294f3c8aab
ripemd-160 f4079f88daa337d31a08100ddf5aa670cc6cd208

21493878 as geometric shapes

Circle

Radius = n
Diameter 42987756
Circumference 135050018.44391
Area 1.4513743101656E+15

Sphere

Radius = n
Volume 4.1594216473378E+22
Surface area 5.8054972406623E+15
Circumference 135050018.44391

Square

Length = n
Perimeter 85975512
Area 461986791478884
Diagonal 30396933.775593

Cube

Length = n
Surface area 2771920748873304
Volume 9.9298877336586E+21
Space diagonal 37228488.747687

Equilateral Triangle

Length = n
Perimeter 64481634
Area 2.0004614881679E+14
Altitude 18614244.373843

Triangular Pyramid

Length = n
Surface area 2.0004614881679E+14
Volume 1.1702484921485E+21
Height 10132311.258531