21693945 (number)

21693945 is an odd 8-digits composite number following 21693944 and preceding 21693946. In scientific notation, it is written as 2.1693945 × 10^7. The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors. There are 8743680 positive integers (up to 21693945) that are relatively prime to 21693945.

Interesting facts

Basic properties

Name

Name twenty-one million six hundred ninety-three thousand nine hundred forty-five

Notation

Scientific notation 2.1693945 × 10^7
Engineering notation 2.1693945 × 10^6

Prime Factorization of 21693945

Prime Factorization 273 × 5 × 23 × 691

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21693945
Product of the distinct prime numbers

The prime factorization of 21693945 is 273 × 5 × 23 × 691. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 9, 85, 80, 187, 216, 9398, 1446, 25105, 27516, 690033, 556445, 7201562, 1468006, 76313734, 81327811, 482810251, 68857017, 3811658098, 9881244626

Basic calculations (n = 21693945)

Multiplication

n×y
n×2 43387890
n×3 65081835
n×4 86775780
n×5 108469725

Division

n÷y
n÷2 10846972.5
n÷3 7231315
n÷3 5423486.25
n÷5 4338789

Exponentiation

ny
n2 470627249663025
n3 1.0209761669691E+22
n4 2.2149000812538E+29
n5 4.8049920543216E+36

Nth Root

y√n
2√n 4657.6759226035
3√n 278.89849983957
4√n 68.247167872399
5√n 29.327004576646

Divisors of 21693945

1, 5, 23, 115, 273, 691, 1365, 3455, 6279, 15893, 31395, 79465, 188643, 943215, 4338789, 21693945

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21693944
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21693945 can be divided by 16 positive divisors. The sum of these divisors (counting 21693945) is 1, the average is 0.0625.

Base conversion 21693945

Base System Value
2 Binary 1010010110000010111111001
3 Ternary 1111211011111110
4 Quaternary 1102300113321
5 Quinary 21023201240
6 Senary 2052550533
8 Octal 122602771
10 Decimal 21693945
12 Duodecimal 7322449
16 Hexadecimal 14b05f9
20 Vigesimal 6fbeh5
36 Base36 cwz5l

Cryptographic Hash Functions

md5 08206638ec744962e715eae69713ac9a
sha1 f3f98ef32cf47d27f74c39ff8db23e5ea8b2937a
sha256 399a1a5b4ebfaee47d785e5e815e14d610d17091387ef16e0ec25b0d3793ec9c
sha512 76aadd5977dc58ef7aa2d6b1a038dcba986834b629dc2c3060d23df8f6366856df95ba3f19081fc77c5186b58af32fb2a04ab185b7e8cff181aaf5e193d7fd9d
ripemd-160 489d81f491c0187eae09833a3da779836dd7ef78

21693945 as geometric shapes

Circle

Radius = n
Diameter 43387890
Circumference 136307076.47876
Area 1.4785191101205E+15

Sphere

Radius = n
Volume 4.2766549675205E+22
Surface area 5.9140764404821E+15
Circumference 136307076.47876

Square

Length = n
Perimeter 86775780
Area 470627249663025
Diagonal 30679871.240376

Cube

Length = n
Surface area 2823763497978150
Volume 1.0209761669691E+22
Space diagonal 37575014.956605

Equilateral Triangle

Length = n
Perimeter 65081835
Area 2.0378757696069E+14
Altitude 18787507.478302

Triangular Pyramid

Length = n
Surface area 2.0378757696069E+14
Volume 1.2032319518228E+21
Height 10226623.746792