21291208 (number)

21291208 is an even 8-digits composite number following 21291207 and preceding 21291209. In scientific notation, it is written as 2.1291208 × 10^7. The sum of its digits is 25. It has a total of 6 prime factors and 24 positive divisors. There are 10018304 positive integers (up to 21291208) that are relatively prime to 21291208.

Interesting facts

Basic properties

Name

Name twenty-one million two hundred ninety-one thousand two hundred eight

Notation

Scientific notation 2.1291208 × 10^7
Engineering notation 2.1291208 × 10^6

Prime Factorization of 21291208

Prime Factorization 2 × 2 × 2 × 17 × 17 × 9209

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 313106
Product of the distinct prime numbers

The prime factorization of 21291208 is 2 × 2 × 2 × 17 × 17 × 9209. Since it has a total of 6 prime factors.

Most popular turbo-numbers

5, 2, 28, 6, 328, 325, 3477, 1168, 71141, 22621, 640283, 491583, 4084867, 1583352, 17123374, 25010310, 229628026, 743691917, 5790289631, 9713923278

Basic calculations (n = 21291208)

Multiplication

n×y
n×2 42582416
n×3 63873624
n×4 85164832
n×5 106456040

Division

n÷y
n÷2 10645604
n÷3 7097069.3333333
n÷3 5322802
n÷5 4258241.6

Exponentiation

ny
n2 453315538099264
n3 9.6516354113034E+21
n4 2.0549497708223E+29
n5 4.3752363000129E+36

Nth Root

y√n
2√n 4614.2396990187
3√n 277.16183898451
4√n 67.928195169743
5√n 29.217298700228

Divisors of 21291208

1, 2, 4, 8, 17, 34, 68, 136, 289, 578, 1156, 2312, 9209, 18418, 36836, 73672, 156553, 313106, 626212, 1252424, 2661401, 5322802, 10645604, 21291208

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21291207
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21291208 can be divided by 24 positive divisors. The sum of these divisors (counting 21291208) is 1, the average is 0.041666666666667.

Base conversion 21291208

Base System Value
2 Binary 1010001001110000011001000
3 Ternary 1111001201001021
4 Quaternary 1101032003020
5 Quinary 20422304313
6 Senary 2040202224
8 Octal 121160310
10 Decimal 21291208
12 Duodecimal 7169374
16 Hexadecimal 144e0c8
20 Vigesimal 6d1808
36 Base36 coceg

Cryptographic Hash Functions

md5 fbc7887c3c2f4c95ec9e591c6ac65ef8
sha1 243ee45985509a701fdbfb9c56a251b396924f3d
sha256 754a36ce02a1c09dbe41aff42cb7b690703aa9fc5da61cb4c18dec3967c3e82f
sha512 a3e4272fd73d81c99250377e0bd5d781ae9532dd169848bf6723975144551fc67e383a4d37ae0c0899cad5408775e92ddc53422d20f0ea900c2e7a55d6eed190
ripemd-160 f397dc137ff966bf9d766a4d26977c41b20bcaa3

21291208 as geometric shapes

Circle

Radius = n
Diameter 42582416
Circumference 133776605.2777
Area 1.4241327642508E+15

Sphere

Radius = n
Volume 4.0428675871037E+22
Surface area 5.696531057003E+15
Circumference 133776605.2777

Square

Length = n
Perimeter 85164832
Area 453315538099264
Diagonal 30110315.112907

Cube

Length = n
Surface area 2719893228595584
Volume 9.6516354113034E+21
Space diagonal 36877454.010517

Equilateral Triangle

Length = n
Perimeter 63873624
Area 1.9629138596209E+14
Altitude 18438727.005258

Triangular Pyramid

Length = n
Surface area 1.9629138596209E+14
Volume 1.1374561414788E+21
Height 10036771.704302