21697721 (number)

21697721 is an odd 8-digits prime number following 21697720 and preceding 21697722. In scientific notation, it is written as 2.1697721 × 10^7. The sum of its digits is 35. It has a total of 1 prime factors and 2 positive divisors. There are 21697720 positive integers (up to 21697721) that are relatively prime to 21697721.

Interesting facts

Basic properties

Name

Name twenty-one million six hundred ninety-seven thousand seven hundred twenty-one

Notation

Scientific notation 2.1697721 × 10^7
Engineering notation 2.1697721 × 10^6

Prime Factorization of 21697721

Prime Factorization 21697721

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 21697721
Product of the distinct prime numbers

The prime factorization of 21697721 is 21697721. Since it has a total of 1 prime factors.

Most popular turbo-numbers

5, 6, 66, 56, 135, 460, 2229, 5518, 42202, 65356, 465737, 265607, 3444512, 2029862, 42662830, 90894580, 881910188, 804012175, 5889412750, 7403845318

Basic calculations (n = 21697721)

Multiplication

n×y
n×2 43395442
n×3 65093163
n×4 86790884
n×5 108488605

Division

n÷y
n÷2 10848860.5
n÷3 7232573.6666667
n÷3 5424430.25
n÷5 4339544.2

Exponentiation

ny
n2 470791096593841
n3 1.0215093863177E+22
n4 2.2164425663203E+29
n5 4.8091752416542E+36

Nth Root

y√n
2√n 4658.0812573419
3√n 278.9146803858
4√n 68.250137416286
5√n 29.328025424262

Divisors of 21697721

1, 21697721

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 21697722
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 10848861
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 4658.0813646822
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999999078244
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21697721 can be divided by 2 positive divisors. The sum of these divisors (counting 21697721) is 21697722, the average is 10848861.

Base conversion 21697721

Base System Value
2 Binary 1010010110001010010111001
3 Ternary 1111211100200022
4 Quaternary 1102301102321
5 Quinary 21023311341
6 Senary 2053020225
8 Octal 122612271
10 Decimal 21697721
12 Duodecimal 7324675
16 Hexadecimal 14b14b9
20 Vigesimal 6fc461
36 Base36 cx22h

Cryptographic Hash Functions

md5 7212858bb2b8f1fc5e3e936323aefd04
sha1 bace27bd1100cd2ba35f0fbf22d73d3be36ba26b
sha256 c0b64a64b9b801d7716126d9076909a9f0eb6370d022af0ea49ee175127f2b74
sha512 a4167d3b961a401b2c4db025c641925c4404379faedae69b85c19044ed7a1905d0d9b8e388585f9f0104e5706636f1df8a13fd7b8edb633b04c252af4f7f4e42
ripemd-160 c6c5df419f91a7c8bbcb384513ab0eafd01ca0fe

21697721 as geometric shapes

Circle

Radius = n
Diameter 43395442
Circumference 136330801.78648
Area 1.4790338504347E+15

Sphere

Radius = n
Volume 4.278888511505E+22
Surface area 5.9161354017388E+15
Circumference 136330801.78648

Square

Length = n
Perimeter 86790884
Area 470791096593841
Diagonal 30685211.310788

Cube

Length = n
Surface area 2824746579563046
Volume 1.0215093863177E+22
Space diagonal 37581555.180454

Equilateral Triangle

Length = n
Perimeter 65093163
Area 2.038585247629E+14
Altitude 18790777.590227

Triangular Pyramid

Length = n
Surface area 2.038585247629E+14
Volume 1.2038603568516E+21
Height 10228403.770263