21493956 (number)

21493956 is an even 8-digits composite number following 21493955 and preceding 21493957. In scientific notation, it is written as 2.1493956 × 10^7. The sum of its digits is 39. It has a total of 7 prime factors and 72 positive divisors. There are 6406400 positive integers (up to 21493956) that are relatively prime to 21493956.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-three thousand nine hundred fifty-six

Notation

Scientific notation 2.1493956 × 10^7
Engineering notation 2.1493956 × 10^6

Prime Factorization of 21493956

Prime Factorization 2 × 2 × 3 × 11 × 11 × 131 × 113

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 976998
Product of the distinct prime numbers

The prime factorization of 21493956 is 2 × 2 × 3 × 11 × 11 × 131 × 113. Since it has a total of 7 prime factors.

Most popular turbo-numbers

8, 8, 30, 77, 300, 56, 5866, 3971, 15902, 59246, 959633, 205214, 4192080, 166063, 59627066, 52374284, 766599070, 330286396, 5156852693, 8298050391

Basic calculations (n = 21493956)

Multiplication

n×y
n×2 42987912
n×3 64481868
n×4 85975824
n×5 107469780

Division

n÷y
n÷2 10746978
n÷3 7164652
n÷3 5373489
n÷5 4298791.2

Exponentiation

ny
n2 461990144529936
n3 9.9299958389601E+21
n4 2.1343489364279E+29
n5 4.5875602128228E+36

Nth Root

y√n
2√n 4636.1574606564
3√n 278.03882969516
4√n 68.089334411906
5√n 29.272732972526

Divisors of 21493956

1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 113, 121, 131, 132, 226, 242, 262, 339, 363, 393, 452, 484, 524, 678, 726, 786, 1243, 1356, 1441, 1452, 1572, 2486, 2882, 3729, 4323, 4972, 5764, 7458, 8646, 13673, 14803, 14916, 15851, 17292, 27346, 29606, 31702, 41019, 44409, 47553, 54692, 59212, 63404, 82038, 88818, 95106, 162833, 164076, 177636, 190212, 325666, 488499, 651332, 976998, 1791163, 1953996, 3582326, 5373489, 7164652, 10746978, 21493956

72 divisors

τ Total Divisors 72
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21493955
Sum of the proper positive divisors of n
A Arithmetic Mean 0.013888888888889
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 72
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21493956 can be divided by 72 positive divisors. The sum of these divisors (counting 21493956) is 1, the average is 0.013888888888889.

Base conversion 21493956

Base System Value
2 Binary 1010001111111100011000100
3 Ternary 1111110000011110
4 Quaternary 1101333203010
5 Quinary 21000301311
6 Senary 2044405020
8 Octal 121774304
10 Decimal 21493956
12 Duodecimal 7246770
16 Hexadecimal 147f8c4
20 Vigesimal 6e6ehg
36 Base36 csouc

Cryptographic Hash Functions

md5 8c160b23bb17fd2b85b7cff3f1f15e4f
sha1 a7b44da2cbc1c47c430e34b7e25d074e1a15e0e4
sha256 2d0301a339c07929f2a3544885d8dd51b1aae8c3fc443d3ac21d08b502c45d64
sha512 737c8862c5c193bd600f57d8e04f9450f7669228b17bd84a538155a558e9b55a2a515dbdfb161bf1a39679203bb2e9b82b5fcb6ed17867935a08631b9a5d5781
ripemd-160 b5bfe649451a4156fe30a3149fca78a00bc7608a

21493956 as geometric shapes

Circle

Radius = n
Diameter 42987912
Circumference 135050508.53236
Area 1.4513848440861E+15

Sphere

Radius = n
Volume 4.1594669303806E+22
Surface area 5.8055393763445E+15
Circumference 135050508.53236

Square

Length = n
Perimeter 85975824
Area 461990144529936
Diagonal 30397044.084251

Cube

Length = n
Surface area 2771940867179616
Volume 9.9299958389601E+21
Space diagonal 37228623.84765

Equilateral Triangle

Length = n
Perimeter 64481868
Area 2.0004760073048E+14
Altitude 18614311.923825

Triangular Pyramid

Length = n
Surface area 2.0004760073048E+14
Volume 1.1702612324805E+21
Height 10132348.028084