21078839 (number)

21078839 is an odd 8-digits composite number following 21078838 and preceding 21078840. In scientific notation, it is written as 2.1078839 × 10^7. The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors. There are 20956824 positive integers (up to 21078839) that are relatively prime to 21078839.

Interesting facts

Basic properties

Name

Name twenty-one million seventy-eight thousand eight hundred thirty-nine

Notation

Scientific notation 2.1078839 × 10^7
Engineering notation 2.1078839 × 10^6

Prime Factorization of 21078839

Prime Factorization 173 × 121843

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21078839
Product of the distinct prime numbers

The prime factorization of 21078839 is 173 × 121843. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 4, 23, 44, 805, 475, 9726, 6926, 13182, 54758, 211723, 245076, 4268394, 1505891, 89879706, 72216949, 598306264, 488207983, 4750677073, 6580231573

Basic calculations (n = 21078839)

Multiplication

n×y
n×2 42157678
n×3 63236517
n×4 84315356
n×5 105394195

Division

n÷y
n÷2 10539419.5
n÷3 7026279.6666667
n÷3 5269709.75
n÷5 4215767.8

Exponentiation

ny
n2 444317453587921
n3 9.3656960690698E+21
n4 1.9741799956285E+29
n5 4.1613422284875E+36

Nth Root

y√n
2√n 4591.1696766728
3√n 276.23724175499
4√n 67.758170552877
5√n 29.158779204347

Divisors of 21078839

1, 173, 121843, 21078839

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21078838
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21078839 can be divided by 4 positive divisors. The sum of these divisors (counting 21078839) is 1, the average is 0.25.

Base conversion 21078839

Base System Value
2 Binary 1010000011010001100110111
3 Ternary 1110122220201202
4 Quaternary 1100122030313
5 Quinary 20344010324
6 Senary 2031443115
8 Octal 120321467
10 Decimal 21078839
12 Duodecimal 708649b
16 Hexadecimal 141a337
20 Vigesimal 6beh1j
36 Base36 cjsjb

Cryptographic Hash Functions

md5 f9a58fee56a3bf1778afe71d5b26b816
sha1 3d7e26cc2a03c04531de2e691960cb6d6705ef55
sha256 8de633980877b2832b6f9cdab36ef7f35460075f91dc87df2c77f289a8cb0c7d
sha512 809524a926435ccfac55193c2549fcad8dc925ee8f88697b36bd5e42444851cc58909f930a7b97561ac54750a64388053ea4a70beae5e51bf37258751f112496
ripemd-160 9f4ecb5dfbeaf54797710f1ec824794fc01ff724

21078839 as geometric shapes

Circle

Radius = n
Diameter 42157678
Circumference 132442251.4972
Area 1.3958644480535E+15

Sphere

Radius = n
Volume 3.9230935955126E+22
Surface area 5.5834577922141E+15
Circumference 132442251.4972

Square

Length = n
Perimeter 84315356
Area 444317453587921
Diagonal 29809979.992879

Cube

Length = n
Surface area 2665904721527526
Volume 9.3656960690698E+21
Space diagonal 36509620.112564

Equilateral Triangle

Length = n
Perimeter 63236517
Area 1.9239510107598E+14
Altitude 18254810.056282

Triangular Pyramid

Length = n
Surface area 1.9239510107598E+14
Volume 1.1037578668286E+21
Height 9936659.9976263