21691880 (number)

21691880 is an even 8-digits composite number following 21691879 and preceding 21691881. In scientific notation, it is written as 2.1691880 × 10^7. The sum of its digits is 35. It has a total of 6 prime factors and 32 positive divisors. There are 7437120 positive integers (up to 21691880) that are relatively prime to 21691880.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1691880 × 10^7
Engineering notation 2.1691880 × 10^6

Prime Factorization of 21691880

Prime Factorization 2 × 2 × 2 × 5 × 7 × 77471

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 5422970
Product of the distinct prime numbers

The prime factorization of 21691880 is 2 × 2 × 2 × 5 × 7 × 77471. Since it has a total of 6 prime factors.

Most popular turbo-numbers

5, 7, 69, 65, 310, 886, 7580, 6041, 91974, 77595, 40772, 182346, 1668535, 2150201, 25871096, 57459712, 452886060, 7495956, 6216106177, 1565826705

Basic calculations (n = 21691880)

Multiplication

n×y
n×2 43383760
n×3 65075640
n×4 86767520
n×5 108459400

Division

n÷y
n÷2 10845940
n÷3 7230626.6666667
n÷3 5422970
n÷5 4338376

Exponentiation

ny
n2 470537657934400
n3 1.0206846411394E+22
n4 2.2140568753439E+29
n5 4.8027056053135E+36

Nth Root

y√n
2√n 4657.4542402476
3√n 278.88965030917
4√n 68.245543739116
5√n 29.32644624048

Divisors of 21691880

1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 77471, 154942, 309884, 387355, 542297, 619768, 774710, 1084594, 1549420, 2169188, 2711485, 3098840, 4338376, 5422970, 10845940, 21691880

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21691879
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21691880 can be divided by 32 positive divisors. The sum of these divisors (counting 21691880) is 1, the average is 0.03125.

Base conversion 21691880

Base System Value
2 Binary 1010010101111110111101000
3 Ternary 1111211001122222
4 Quaternary 1102233313220
5 Quinary 21023120010
6 Senary 2052533212
8 Octal 122576750
10 Decimal 21691880
12 Duodecimal 7321208
16 Hexadecimal 14afde8
20 Vigesimal 6fb9e0
36 Base36 cwxk8

Cryptographic Hash Functions

md5 872abb92ea236a05abc48a2cd47f0d9e
sha1 ea7f50b528f35d337cd9bb0f36bfd58f26419f47
sha256 2df3a082b676252c0fc9b6913c4263e6fdec6fd40e97eecc52b8a12aafecd3e8
sha512 2cda28fd9a82c6708d90ef9d0aabd15e5bc22bf6556805c1890e36c59d1999ee92ee2b6e9a01f3db53e505a6c21e05190bda3b164c003e9c11b891e05898ecc6
ripemd-160 fedbd04dae49010e92c4424f112c395d76e7a05f

21691880 as geometric shapes

Circle

Radius = n
Diameter 43383760
Circumference 136294101.7011
Area 1.4782376494041E+15

Sphere

Radius = n
Volume 4.2754338269807E+22
Surface area 5.9129505976162E+15
Circumference 136294101.7011

Square

Length = n
Perimeter 86767520
Area 470537657934400
Diagonal 30676950.88937

Cube

Length = n
Surface area 2823225947606400
Volume 1.0206846411394E+22
Space diagonal 37571438.271687

Equilateral Triangle

Length = n
Perimeter 65075640
Area 2.0374878260421E+14
Altitude 18785719.135844

Triangular Pyramid

Length = n
Surface area 2.0374878260421E+14
Volume 1.2028883853377E+21
Height 10225650.296457