21997688 (number)

21997688 is an even 8-digits composite number following 21997687 and preceding 21997689. In scientific notation, it is written as 2.1997688 × 10^7. The sum of its digits is 50. It has a total of 4 prime factors and 8 positive divisors. There are 10998840 positive integers (up to 21997688) that are relatively prime to 21997688.

Interesting facts

Basic properties

Name

Name twenty-one million nine hundred ninety-seven thousand six hundred eighty-eight

Notation

Scientific notation 2.1997688 × 10^7
Engineering notation 2.1997688 × 10^6

Prime Factorization of 21997688

Prime Factorization 2 × 2 × 2 × 2749711

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 5499422
Product of the distinct prime numbers

The prime factorization of 21997688 is 2 × 2 × 2 × 2749711. Since it has a total of 4 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21997688)

Multiplication

n×y
n×2 43995376
n×3 65993064
n×4 87990752
n×5 109988440

Division

n÷y
n÷2 10998844
n÷3 7332562.6666667
n÷3 5499422
n÷5 4399537.6

Exponentiation

ny
n2 483898277345344
n3 1.064464332878E+22
n4 2.3415754281779E+29
n5 5.1509245697524E+36

Nth Root

y√n
2√n 4690.1692933198
3√n 280.19411709299
4√n 68.484810675943
5√n 29.408671592428

Divisors of 21997688

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 -21997687
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 21997688 can be divided by 8 positive divisors. The sum of these divisors (counting 21997688) is 1, the average is 0.125.

Base conversion 21997688

Base System Value
2 Binary 1010011111010100001111000
3 Ternary 1112101121011012
4 Quaternary 1103322201320
5 Quinary 21112411223
6 Senary 2103253052
8 Octal 123724170
10 Decimal 21997688
12 Duodecimal 744a188
16 Hexadecimal 14fa878
20 Vigesimal 6h9e48
36 Base36 d3hiw

Cryptographic Hash Functions

md5 68d00caf51f1176ee20a2564646f8984
sha1 72dcc75c9032c36fb5030a16caf1f4bd2ad32dbe
sha256 d1ddb8d5224f8093ebefbcfb9d782927125c6e37132d0f62f1c5f25754e37295
sha512 188affc5579691d025044362b35cdc807ad4a84e22773c80fd1524a6f152adeda2ba269e639ac0dc1ff76f7ce21455b69b5b5848591da1eba3d30c27bbfb30c9
ripemd-160 11f0a36e9c57fbf436f23219a0e8e9742c9519f2

21997688 as geometric shapes

Circle

Radius = n
Diameter 43995376
Circumference 138215550.03352
Area 1.5202112731929E+15

Sphere

Radius = n
Volume 4.458817770904E+22
Surface area 6.0808450927716E+15
Circumference 138215550.03352

Square

Length = n
Perimeter 87990752
Area 483898277345344
Diagonal 31109428.710452

Cube

Length = n
Surface area 2903389664072064
Volume 1.064464332878E+22
Space diagonal 38101113.265048

Equilateral Triangle

Length = n
Perimeter 65993064
Area 2.095341005143E+14
Altitude 19050556.632524

Triangular Pyramid

Length = n
Surface area 2.095341005143E+14
Volume 1.2544832468488E+21
Height 10369809.570151