21491899 (number)

21491899 is an odd 8-digits composite number following 21491898 and preceding 21491900. In scientific notation, it is written as 2.1491899 × 10^7. The sum of its digits is 43. It has a total of 5 prime factors and 18 positive divisors. There are 18018000 positive integers (up to 21491899) that are relatively prime to 21491899.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1491899 × 10^7
Engineering notation 2.1491899 × 10^6

Prime Factorization of 21491899

Prime Factorization 11 × 11 × 13 × 13 × 1051

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 150293
Product of the distinct prime numbers

The prime factorization of 21491899 is 11 × 11 × 13 × 13 × 1051. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 5, 22, 34, 375, 17, 2476, 8137, 23324, 13227, 227179, 430160, 5554089, 4558653, 89019545, 41296741, 804598198, 165282119, 7644225200, 2600909535

Basic calculations (n = 21491899)

Multiplication

n×y
n×2 42983798
n×3 64475697
n×4 85967596
n×5 107459495

Division

n÷y
n÷2 10745949.5
n÷3 7163966.3333333
n÷3 5372974.75
n÷5 4298379.8

Exponentiation

ny
n2 461901722626201
n3 9.9271451706083E+21
n4 2.1335320136505E+29
n5 4.5853654550644E+36

Nth Root

y√n
2√n 4635.9356121499
3√n 278.02995985103
4√n 68.087705293613
5√n 29.272172663229

Divisors of 21491899

1, 11, 13, 121, 143, 169, 1051, 1573, 1859, 11561, 13663, 20449, 127171, 150293, 177619, 1653223, 1953809, 21491899

18 divisors

τ Total Divisors 18
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21491898
Sum of the proper positive divisors of n
A Arithmetic Mean 0.055555555555556
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 18
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21491899 can be divided by 18 positive divisors. The sum of these divisors (counting 21491899) is 1, the average is 0.055555555555556.

Base conversion 21491899

Base System Value
2 Binary 1010001111111000010111011
3 Ternary 1111102220100021
4 Quaternary 1101333002323
5 Quinary 21000220044
6 Senary 2044351311
8 Octal 121770273
10 Decimal 21491899
12 Duodecimal 7245537
16 Hexadecimal 147f0bb
20 Vigesimal 6e69ej
36 Base36 csn97

Cryptographic Hash Functions

md5 7719328ff565d896828d6b260e8939ac
sha1 92f37cbccac003d6a48308cf4449721a9f7a4b57
sha256 ba04ead56a7fbae0659a3cd81b33e63240f2aa6e245695e745f7a0a981f1d7bb
sha512 bf00720ece635f72042ca8d3270a3cef1ec937cdd038662fc022f228c3bb98ebf5cbd248324d5414a8053a766e8b8a81f18cc24ffb05d1a95b89aaab35778a36
ripemd-160 f63103124ba36ee5cb7a39f414cf2b92756faaf1

21491899 as geometric shapes

Circle

Radius = n
Diameter 42983798
Circumference 135037584.02019
Area 1.4511070584829E+15

Sphere

Radius = n
Volume 4.1582728452137E+22
Surface area 5.8044282339318E+15
Circumference 135037584.02019

Square

Length = n
Perimeter 85967596
Area 461901722626201
Diagonal 30394135.046953

Cube

Length = n
Surface area 2771410335757206
Volume 9.9271451706083E+21
Space diagonal 37225061.019139

Equilateral Triangle

Length = n
Perimeter 64475697
Area 2.0000931292304E+14
Altitude 18612530.509569

Triangular Pyramid

Length = n
Surface area 2.0000931292304E+14
Volume 1.1699252779934E+21
Height 10131378.348984