21978839 (number)

21978839 is an odd 8-digits composite number following 21978838 and preceding 21978840. In scientific notation, it is written as 2.1978839 × 10^7. The sum of its digits is 47. It has a total of 4 prime factors and 16 positive divisors. There are 19869696 positive integers (up to 21978839) that are relatively prime to 21978839.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1978839 × 10^7
Engineering notation 2.1978839 × 10^6

Prime Factorization of 21978839

Prime Factorization 29 × 19 × 113 × 353

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21978839
Product of the distinct prime numbers

The prime factorization of 21978839 is 29 × 19 × 113 × 353. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 5, 88, 35, 319, 170, 4514, 76, 52339, 88770, 367875, 707913, 9751024, 6960813, 14853058, 27487794, 324885021, 496823685, 4247687744, 5530023087

Basic calculations (n = 21978839)

Multiplication

n×y
n×2 43957678
n×3 65936517
n×4 87915356
n×5 109894195

Division

n÷y
n÷2 10989419.5
n÷3 7326279.6666667
n÷3 5494709.75
n÷5 4395767.8

Exponentiation

ny
n2 483069363787921
n3 1.0617303772527E+22
n4 2.3335601023047E+29
n5 5.1288941785378E+36

Nth Root

y√n
2√n 4688.1594469472
3√n 280.11406492108
4√n 68.470135438359
5√n 29.403630024965

Divisors of 21978839

1, 19, 29, 113, 353, 551, 2147, 3277, 6707, 10237, 39889, 62263, 194503, 757891, 1156781, 21978839

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 -21978838
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 21978839 can be divided by 16 positive divisors. The sum of these divisors (counting 21978839) is 1, the average is 0.0625.

Base conversion 21978839

Base System Value
2 Binary 1010011110101111011010111
3 Ternary 1112100122022002
4 Quaternary 1103311323113
5 Quinary 21111310324
6 Senary 2103025515
8 Octal 123657327
10 Decimal 21978839
12 Duodecimal 743b29b
16 Hexadecimal 14f5ed7
20 Vigesimal 6h771j
36 Base36 d32zb

Cryptographic Hash Functions

md5 02a4d554f28857c048a97367cf4813ae
sha1 5e162275299145d091eb12f9b8baf0b16d04b3a5
sha256 2e8fa39325dbd7a74b1ec450314b693b1269858badfc26a29649726ff1aba21a
sha512 1ce58b1c7236671320838a7561824aad275b719816c22f393a511d1f49b532763a871be8b3c6df8fc7311d447f20d25406474725a8caf028a61e4b278ab99887
ripemd-160 bd880df1bc3caa61d467825b8cb9b41723f51f4e

21978839 as geometric shapes

Circle

Radius = n
Diameter 43957678
Circumference 138097118.27367
Area 1.5176071644504E+15

Sphere

Radius = n
Volume 4.4473658043603E+22
Surface area 6.0704286578017E+15
Circumference 138097118.27367

Square

Length = n
Perimeter 87915356
Area 483069363787921
Diagonal 31082772.199015

Cube

Length = n
Surface area 2898416182727526
Volume 1.0617303772527E+22
Space diagonal 38068465.839376

Equilateral Triangle

Length = n
Perimeter 65936517
Area 2.0917517041516E+14
Altitude 19034232.919688

Triangular Pyramid

Length = n
Surface area 2.0917517041516E+14
Volume 1.2512612492452E+21
Height 10360924.066338