21691823 (number)

21691823 is an odd 8-digits composite number following 21691822 and preceding 21691824. In scientific notation, it is written as 2.1691823 × 10^7. The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors. There are 21187320 positive integers (up to 21691823) that are relatively prime to 21691823.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1691823 × 10^7
Engineering notation 2.1691823 × 10^6

Prime Factorization of 21691823

Prime Factorization 43 × 504461

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21691823
Product of the distinct prime numbers

The prime factorization of 21691823 is 43 × 504461. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21691823)

Multiplication

n×y
n×2 43383646
n×3 65075469
n×4 86767292
n×5 108459115

Division

n÷y
n÷2 10845911.5
n÷3 7230607.6666667
n÷3 5422955.75
n÷5 4338364.6

Exponentiation

ny
n2 470535185063329
n3 1.0206765949666E+22
n4 2.2140336038258E+29
n5 4.8026425050242E+36

Nth Root

y√n
2√n 4657.4481210208
3√n 278.88940602846
4√n 68.245498906674
5√n 29.326430828176

Divisors of 21691823

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 -21691822
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 21691823 can be divided by 4 positive divisors. The sum of these divisors (counting 21691823) is 1, the average is 0.25.

Base conversion 21691823

Base System Value
2 Binary 1010010101111110110101111
3 Ternary 1111211001120212
4 Quaternary 1102233312233
5 Quinary 21023114243
6 Senary 2052533035
8 Octal 122576657
10 Decimal 21691823
12 Duodecimal 732117b
16 Hexadecimal 14afdaf
20 Vigesimal 6fb9b3
36 Base36 cwxin

Cryptographic Hash Functions

md5 c6e7087d2344dd4356df5a5d12b5759d
sha1 97a44282045b54a7298abcac6b7a96b6e3d19c9f
sha256 6c33d757f3f439642dcad0b1efc546e3db52560022ffb74de91861f309933140
sha512 9d58aa1d4ece1adaf579a5abe2aefefbc2cd911642e33f9297175af843ef584dca12769dc73de3a702991c234826f21a23a7c3bea2272eb7259c4e68a5733435
ripemd-160 372aedd90082ce80986034be97532c63d84218b4

21691823 as geometric shapes

Circle

Radius = n
Diameter 43383646
Circumference 136293743.55954
Area 1.4782298806505E+15

Sphere

Radius = n
Volume 4.2754001232508E+22
Surface area 5.9129195226019E+15
Circumference 136293743.55954

Square

Length = n
Perimeter 86767292
Area 470535185063329
Diagonal 30676870.279197

Cube

Length = n
Surface area 2823211110379974
Volume 1.0206765949666E+22
Space diagonal 37571339.544791

Equilateral Triangle

Length = n
Perimeter 65075469
Area 2.0374771181963E+14
Altitude 18785669.772396

Triangular Pyramid

Length = n
Surface area 2.0374771181963E+14
Volume 1.2028789028321E+21
Height 10225623.426399