21381738 (number)

21381738 is an even 8-digits composite number following 21381737 and preceding 21381739. In scientific notation, it is written as 2.1381738 × 10^7. The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors. There are 6108984 positive integers (up to 21381738) that are relatively prime to 21381738.

Interesting facts

Basic properties

Name

Name twenty-one million three hundred eighty-one thousand seven hundred thirty-eight

Notation

Scientific notation 2.1381738 × 10^7
Engineering notation 2.1381738 × 10^6

Prime Factorization of 21381738

Prime Factorization 2 × 3 × 49 × 72727

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21381738
Product of the distinct prime numbers

The prime factorization of 21381738 is 2 × 3 × 49 × 72727. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 3, 33, 32, 748, 74, 9736, 9440, 29854, 6346, 876897, 439610, 6672333, 3512796, 56715790, 62431238, 780956958, 170162628, 9727635397, 5164432129

Basic calculations (n = 21381738)

Multiplication

n×y
n×2 42763476
n×3 64145214
n×4 85526952
n×5 106908690

Division

n÷y
n÷2 10690869
n÷3 7127246
n÷3 5345434.5
n÷5 4276347.6

Exponentiation

ny
n2 457178719900644
n3 9.775275608091E+21
n4 2.0901238192999E+29
n5 4.469047989183E+36

Nth Root

y√n
2√n 4624.0391434329
3√n 277.55411330065
4√n 68.000287818751
5√n 29.242102880597

Divisors of 21381738

1, 2, 3, 6, 49, 98, 147, 294, 72727, 145454, 218181, 436362, 3563623, 7127246, 10690869, 21381738

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 -21381737
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 21381738 can be divided by 16 positive divisors. The sum of these divisors (counting 21381738) is 1, the average is 0.0625.

Base conversion 21381738

Base System Value
2 Binary 1010001100100001001101010
3 Ternary 1111020022020020
4 Quaternary 1101210021222
5 Quinary 20433203423
6 Senary 2042141310
8 Octal 121441152
10 Decimal 21381738
12 Duodecimal 71b1836
16 Hexadecimal 146426a
20 Vigesimal 6dce6i
36 Base36 cqa96

Cryptographic Hash Functions

md5 e8dcdce56fa6584b24908ed037a9c449
sha1 094ff06a5519cf16031700158e9af376f299d191
sha256 b74d52660fbeed9e3de15db7b3de86466acab859b7e21d4e6d836d9b0f03bb8e
sha512 b780d9e33459d487ed5d4dd304725b83e2bad6e6eed3ada39a1a88faa11aef9ce254dbd75d327b1a82050288cc1980149f12a0c502a2fee54f79dfb316b7367d
ripemd-160 b357fb74e0cfe7e863ed9c929bf10266755c1fe3

21381738 as geometric shapes

Circle

Radius = n
Diameter 42763476
Circumference 134345422.04356
Area 1.4362693078174E+15

Sphere

Radius = n
Volume 4.0946578716259E+22
Surface area 5.7450772312698E+15
Circumference 134345422.04356

Square

Length = n
Perimeter 85526952
Area 457178719900644
Diagonal 30238343.866708

Cube

Length = n
Surface area 2743072319403864
Volume 9.775275608091E+21
Space diagonal 37034256.570126

Equilateral Triangle

Length = n
Perimeter 64145214
Area 1.979641927518E+14
Altitude 18517128.285063

Triangular Pyramid

Length = n
Surface area 1.979641927518E+14
Volume 1.1520272784081E+21
Height 10079447.955569