21491912 (number)

21491912 is an even 8-digits composite number following 21491911 and preceding 21491913. In scientific notation, it is written as 2.1491912 × 10^7. The sum of its digits is 29. It has a total of 6 prime factors and 32 positive divisors. There are 9859584 positive integers (up to 21491912) that are relatively prime to 21491912.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-one thousand nine hundred twelve

Notation

Scientific notation 2.1491912 × 10^7
Engineering notation 2.1491912 × 10^6

Prime Factorization of 21491912

Prime Factorization 2 × 2 × 2 × 13 × 197 × 1049

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 5372978
Product of the distinct prime numbers

The prime factorization of 21491912 is 2 × 2 × 2 × 13 × 197 × 1049. Since it has a total of 6 prime factors.

Most popular turbo-numbers

3, 9, 85, 7, 777, 860, 9772, 3863, 33276, 71761, 457440, 784095, 9628056, 1799632, 25679259, 79077072, 465412252, 723089213, 6926489497, 2582540668

Basic calculations (n = 21491912)

Multiplication

n×y
n×2 42983824
n×3 64475736
n×4 85967648
n×5 107459560

Division

n÷y
n÷2 10745956
n÷3 7163970.6666667
n÷3 5372978
n÷5 4298382.4

Exponentiation

ny
n2 461902281415744
n3 9.9271631847864E+21
n4 2.1335371757707E+29
n5 4.5853793230392E+36

Nth Root

y√n
2√n 4635.9370142399
3√n 278.03001590919
4√n 68.087715589818
5√n 29.272176204453

Divisors of 21491912

1, 2, 4, 8, 13, 26, 52, 104, 197, 394, 788, 1049, 1576, 2098, 2561, 4196, 5122, 8392, 10244, 13637, 20488, 27274, 54548, 109096, 206653, 413306, 826612, 1653224, 2686489, 5372978, 10745956, 21491912

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21491911
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21491912 can be divided by 32 positive divisors. The sum of these divisors (counting 21491912) is 1, the average is 0.03125.

Base conversion 21491912

Base System Value
2 Binary 1010001111111000011001000
3 Ternary 1111102220100202
4 Quaternary 1101333003020
5 Quinary 21000220122
6 Senary 2044351332
8 Octal 121770310
10 Decimal 21491912
12 Duodecimal 7245548
16 Hexadecimal 147f0c8
20 Vigesimal 6e69fc
36 Base36 csn9k

Cryptographic Hash Functions

md5 c34c360b64e73b41f86f66f41f08505f
sha1 77f6bb6ec3cdb152a3fd2897b1746c831962723c
sha256 deef7e8812454376b16f0bae3b4eb23cadb0a19672f3f3a2af86384ce9a6be57
sha512 a93938a13f10835d110d328d0d5a97642306a0ba3bf0f0c3ff26ca81863842c6400d4ca9ea686768108bc193bcf1ae320f66587863413538cea6506970cb1589
ripemd-160 15796fc9008cbecfc44d05298247e4acd332888e

21491912 as geometric shapes

Circle

Radius = n
Diameter 42983824
Circumference 135037665.7016
Area 1.4511088139721E+15

Sphere

Radius = n
Volume 4.1582803909749E+22
Surface area 5.8044352558883E+15
Circumference 135037665.7016

Square

Length = n
Perimeter 85967648
Area 461902281415744
Diagonal 30394153.431729

Cube

Length = n
Surface area 2771413688494464
Volume 9.9271631847864E+21
Space diagonal 37225083.535799

Equilateral Triangle

Length = n
Perimeter 64475736
Area 2.0000955488601E+14
Altitude 18612541.7679

Triangular Pyramid

Length = n
Surface area 2.0000955488601E+14
Volume 1.1699274009847E+21
Height 10131384.477243