21307949 (number)

21307949 is an odd 8-digits composite number following 21307948 and preceding 21307950. In scientific notation, it is written as 2.1307949 × 10^7. The sum of its digits is 35. It has a total of 4 prime factors and 16 positive divisors. There are 18506880 positive integers (up to 21307949) that are relatively prime to 21307949.

Interesting facts

Basic properties

Name

Name twenty-one million three hundred seven thousand nine hundred forty-nine

Notation

Scientific notation 2.1307949 × 10^7
Engineering notation 2.1307949 × 10^6

Prime Factorization of 21307949

Prime Factorization 13 × 19 × 281 × 307

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21307949
Product of the distinct prime numbers

The prime factorization of 21307949 is 13 × 19 × 281 × 307. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 7, 42, 74, 176, 838, 7990, 5175, 46929, 94397, 427001, 274693, 8483597, 4998520, 35956407, 17873301, 189117005, 835617447, 9367631586, 8030483484

Basic calculations (n = 21307949)

Multiplication

n×y
n×2 42615898
n×3 63923847
n×4 85231796
n×5 106539745

Division

n÷y
n÷2 10653974.5
n÷3 7102649.6666667
n÷3 5326987.25
n÷5 4261589.8

Exponentiation

ny
n2 454028690586601
n3 9.6744201835561E+21
n4 2.0614205187578E+29
n5 4.3924643281245E+36

Nth Root

y√n
2√n 4616.0534009043
3√n 277.23446287011
4√n 67.941543998531
5√n 29.221891892239

Divisors of 21307949

1, 13, 19, 247, 281, 307, 3653, 3991, 5339, 5833, 69407, 75829, 86267, 1121471, 1639073, 21307949

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 -21307948
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 21307949 can be divided by 16 positive divisors. The sum of these divisors (counting 21307949) is 1, the average is 0.0625.

Base conversion 21307949

Base System Value
2 Binary 1010001010010001000101101
3 Ternary 1111002120000022
4 Quaternary 1101102020231
5 Quinary 20423323244
6 Senary 2040411525
8 Octal 121221055
10 Decimal 21307949
12 Duodecimal 7176ba5
16 Hexadecimal 145222d
20 Vigesimal 6d39h9
36 Base36 copbh

Cryptographic Hash Functions

md5 9eebefbc06c25dce7e29cde7d7b2d81f
sha1 03db5e209fad85909835ecc5b34e1a55f320bcd9
sha256 3010dd5b00f47246062d8e4231232833fa27a63d0820c5f4ced4afeff8075326
sha512 04a09138f6f6d9dccbe14f03b693980fb427882b8e3393dc92abea4444de918159461c6a9c3ae37cd01b99ee85c05cff4b35f4778e49f38fce539a5ba555975d
ripemd-160 90ea3ffd8a060865118d434752ad26519a3f2d14

21307949 as geometric shapes

Circle

Radius = n
Diameter 42615898
Circumference 133881792.08293
Area 1.4263731988659E+15

Sphere

Radius = n
Volume 4.0524116501867E+22
Surface area 5.7054927954634E+15
Circumference 133881792.08293

Square

Length = n
Perimeter 85231796
Area 454028690586601
Diagonal 30133990.462154

Cube

Length = n
Surface area 2724172143519606
Volume 9.6744201835561E+21
Space diagonal 36906450.273086

Equilateral Triangle

Length = n
Perimeter 63923847
Area 1.9660019004749E+14
Altitude 18453225.136543

Triangular Pyramid

Length = n
Surface area 1.9660019004749E+14
Volume 1.1401413526401E+21
Height 10044663.487385