21153721 (number)

21153721 is an odd 8-digits composite number following 21153720 and preceding 21153722. In scientific notation, it is written as 2.1153721 × 10^7. The sum of its digits is 22. It has a total of 4 prime factors and 16 positive divisors. There are 19426176 positive integers (up to 21153721) that are relatively prime to 21153721.

Interesting facts

Basic properties

Name

Name twenty-one million one hundred fifty-three thousand seven hundred twenty-one

Notation

Scientific notation 2.1153721 × 10^7
Engineering notation 2.1153721 × 10^6

Prime Factorization of 21153721

Prime Factorization 43 × 23 × 73 × 293

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21153721
Product of the distinct prime numbers

The prime factorization of 21153721 is 43 × 23 × 73 × 293. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 9, 86, 94, 446, 276, 9537, 704, 41120, 30561, 940606, 888710, 6687423, 1351262, 97087444, 90977823, 851171233, 8939580, 6309040305, 6904470274

Basic calculations (n = 21153721)

Multiplication

n×y
n×2 42307442
n×3 63461163
n×4 84614884
n×5 105768605

Division

n÷y
n÷2 10576860.5
n÷3 7051240.3333333
n÷3 5288430.25
n÷5 4230744.2

Exponentiation

ny
n2 447479912145841
n3 9.4658652146376E+21
n4 2.0023827177405E+29
n5 4.2357845346304E+36

Nth Root

y√n
2√n 4599.3174493614
3√n 276.56396358935
4√n 67.818267814516
5√n 29.179466981482

Divisors of 21153721

1, 23, 43, 73, 293, 989, 1679, 3139, 6739, 12599, 21389, 72197, 289777, 491947, 919727, 21153721

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 -21153720
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 21153721 can be divided by 16 positive divisors. The sum of these divisors (counting 21153721) is 1, the average is 0.0625.

Base conversion 21153721

Base System Value
2 Binary 1010000101100011110111001
3 Ternary 1110210201110011
4 Quaternary 1100230132321
5 Quinary 20403404341
6 Senary 2033221521
8 Octal 120543671
10 Decimal 21153721
12 Duodecimal 71018a1
16 Hexadecimal 142c7b9
20 Vigesimal 6c4461
36 Base36 clebd

Cryptographic Hash Functions

md5 c0bd8e6b28a285cb46169efdafb985e3
sha1 82631574e204af583cfa36bd274cbb03a1542493
sha256 f477a4c605623513a913b0a712b59d75418cc150580adf12219b0cd41e51b9af
sha512 6334968dfab72d45a6d1f042f3ee44e7767f2d18825830cb392c1c43c77a513d7697bceba639d45eaf118a552842567a19f6ff4084a92d5b6a9813031ccae700
ripemd-160 a795fde9670ea8ef0ad2b0303a5ebfd0a63f5391

21153721 as geometric shapes

Circle

Radius = n
Diameter 42307442
Circumference 132912748.97938
Area 1.4057996046264E+15

Sphere

Radius = n
Volume 3.9650523490902E+22
Surface area 5.6231984185055E+15
Circumference 132912748.97938

Square

Length = n
Perimeter 84614884
Area 447479912145841
Diagonal 29915879.132857

Cube

Length = n
Surface area 2684879472875046
Volume 9.4658652146376E+21
Space diagonal 36639319.541137

Equilateral Triangle

Length = n
Perimeter 63461163
Area 1.9376448580076E+14
Altitude 18319659.770568

Triangular Pyramid

Length = n
Surface area 1.9376448580076E+14
Volume 1.1155629138447E+21
Height 9971959.7109522