21691211 (number)

21691211 is an odd 8-digits composite number following 21691210 and preceding 21691212. In scientific notation, it is written as 2.1691211 × 10^7. The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors. There are 21639024 positive integers (up to 21691211) that are relatively prime to 21691211.

Interesting facts

Basic properties

Name

Name twenty-one million six hundred ninety-one thousand two hundred eleven

Notation

Scientific notation 2.1691211 × 10^7
Engineering notation 2.1691211 × 10^6

Prime Factorization of 21691211

Prime Factorization 419 × 51769

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21691211
Product of the distinct prime numbers

The prime factorization of 21691211 is 419 × 51769. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21691211)

Multiplication

n×y
n×2 43382422
n×3 65073633
n×4 86764844
n×5 108456055

Division

n÷y
n÷2 10845605.5
n÷3 7230403.6666667
n÷3 5422802.75
n÷5 4338242.2

Exponentiation

ny
n2 470508634646521
n3 1.020590207144E+22
n4 2.2137837527693E+29
n5 4.8019650489691E+36

Nth Root

y√n
2√n 4657.3824193424
3√n 278.88678319801
4√n 68.245017542253
5√n 29.326265346665

Divisors of 21691211

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21691210
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21691211 can be divided by 4 positive divisors. The sum of these divisors (counting 21691211) is 1, the average is 0.25.

Base conversion 21691211

Base System Value
2 Binary 1010010101111101101001011
3 Ternary 1111211000202012
4 Quaternary 1102233231023
5 Quinary 21023104321
6 Senary 2052530135
8 Octal 122575513
10 Decimal 21691211
12 Duodecimal 732094b
16 Hexadecimal 14afb4b
20 Vigesimal 6fb80b
36 Base36 cwx1n

Cryptographic Hash Functions

md5 6092d028c6ad692a8968b9c7732b9abe
sha1 19b0f95945bb176778576a457fd30e27f08ced48
sha256 dbab6642aacedaac1bad438e385ae2f87f7446ed63e653a8a741aa6aee488c93
sha512 5596b06ea88bff341d2898190a2df7caeaeef9dc44573aac2599c4227bcc491ca4cdde0fa52d67cb5d2d6692043af18408441a6dac16cd5a74a3fe278f71b134
ripemd-160 148d5731bd335a0421969d283701ffe7321b63c7

21691211 as geometric shapes

Circle

Radius = n
Diameter 43382422
Circumference 136289898.25013
Area 1.4781464700561E+15

Sphere

Radius = n
Volume 4.2750382627855E+22
Surface area 5.9125858802243E+15
Circumference 136289898.25013

Square

Length = n
Perimeter 86764844
Area 470508634646521
Diagonal 30676004.780496

Cube

Length = n
Surface area 2823051807879126
Volume 1.020590207144E+22
Space diagonal 37570279.529697

Equilateral Triangle

Length = n
Perimeter 65073633
Area 2.0373621515191E+14
Altitude 18785139.764848

Triangular Pyramid

Length = n
Surface area 2.0373621515191E+14
Volume 1.2027770938068E+21
Height 10225334.926832