21690815 (number)

21690815 is an odd 8-digits composite number following 21690814 and preceding 21690816. In scientific notation, it is written as 2.1690815 × 10^7. The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors. There are 17287072 positive integers (up to 21690815) that are relatively prime to 21690815.

Interesting facts

Basic properties

Name

Name twenty-one million six hundred ninety thousand eight hundred fifteen

Notation

Scientific notation 2.1690815 × 10^7
Engineering notation 2.1690815 × 10^6

Prime Factorization of 21690815

Prime Factorization 5 × 269 × 16127

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21690815
Product of the distinct prime numbers

The prime factorization of 21690815 is 5 × 269 × 16127. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21690815)

Multiplication

n×y
n×2 43381630
n×3 65072445
n×4 86763260
n×5 108454075

Division

n÷y
n÷2 10845407.5
n÷3 7230271.6666667
n÷3 5422703.75
n÷5 4338163

Exponentiation

ny
n2 470491455364225
n3 1.0205343117386E+22
n4 2.2136220957075E+29
n5 4.8015267357903E+36

Nth Root

y√n
2√n 4657.3399059978
3√n 278.88508604613
4√n 68.24470606573
5√n 29.326158268403

Divisors of 21690815

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21690814
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21690815 can be divided by 8 positive divisors. The sum of these divisors (counting 21690815) is 1, the average is 0.125.

Base conversion 21690815

Base System Value
2 Binary 1010010101111100110111111
3 Ternary 1111211000012112
4 Quaternary 1102233212333
5 Quinary 21023101230
6 Senary 2052524235
8 Octal 122574677
10 Decimal 21690815
12 Duodecimal 732067b
16 Hexadecimal 14af9bf
20 Vigesimal 6fb70f
36 Base36 cwwqn

Cryptographic Hash Functions

md5 6e79bdccfa15628a0f0637e6a00d1793
sha1 ce228d663207d3fb0d8cc9b7f8a58e5a9073f41d
sha256 cb464c2d5f6985fcc1fad3d3d9c7c0578aa0c6d8fdc323e19953fedff543ab18
sha512 343a7daf4d704da5482a3b7a4b46c59e9eab231267b1e3a12853bec2b3b716e4b7f822c8fc015155e066ceb914a0d03425a48e236eaed1a5f9ea39fcfb1ace64
ripemd-160 961fb458a1e8c35e59ec8aee5efda1c4e5980503

21690815 as geometric shapes

Circle

Radius = n
Diameter 43381630
Circumference 136287410.10875
Area 1.478092499749E+15

Sphere

Radius = n
Volume 4.2748041286591E+22
Surface area 5.9123699989961E+15
Circumference 136287410.10875

Square

Length = n
Perimeter 86763260
Area 470491455364225
Diagonal 30675444.751926

Cube

Length = n
Surface area 2822948732185350
Volume 1.0205343117386E+22
Space diagonal 37569593.637577

Equilateral Triangle

Length = n
Perimeter 65072445
Area 2.0372877630447E+14
Altitude 18784796.818789

Triangular Pyramid

Length = n
Surface area 2.0372877630447E+14
Volume 1.2027112204399E+21
Height 10225148.250642