21542747 (number)

21542747 is an odd 8-digits composite number following 21542746 and preceding 21542748. In scientific notation, it is written as 2.1542747 × 10^7. The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors. There are 21269976 positive integers (up to 21542747) that are relatively prime to 21542747.

Interesting facts

Basic properties

Name

Name twenty-one million five hundred forty-two thousand seven hundred forty-seven

Notation

Scientific notation 2.1542747 × 10^7
Engineering notation 2.1542747 × 10^6

Prime Factorization of 21542747

Prime Factorization 79 × 272693

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21542747
Product of the distinct prime numbers

The prime factorization of 21542747 is 79 × 272693. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21542747)

Multiplication

n×y
n×2 43085494
n×3 64628241
n×4 86170988
n×5 107713735

Division

n÷y
n÷2 10771373.5
n÷3 7180915.6666667
n÷3 5385686.75
n÷5 4308549.4

Exponentiation

ny
n2 464089948306009
n3 9.9977723415994E+21
n4 2.1537948011867E+29
n5 4.6398656491881E+36

Nth Root

y√n
2√n 4641.4164863757
3√n 278.24905221447
4√n 68.127942038313
5√n 29.286010666387

Divisors of 21542747

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 -21542746
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 21542747 can be divided by 4 positive divisors. The sum of these divisors (counting 21542747) is 1, the average is 0.25.

Base conversion 21542747

Base System Value
2 Binary 1010010001011011101011011
3 Ternary 1111112111002112
4 Quaternary 1102023131123
5 Quinary 21003331442
6 Senary 2045422535
8 Octal 122133533
10 Decimal 21542747
12 Duodecimal 726aa4b
16 Hexadecimal 148b75b
20 Vigesimal 6ecgh7
36 Base36 ctqhn

Cryptographic Hash Functions

md5 0d5072adebd435c82c2470eb3294114d
sha1 86e143a5b00c61d6e7ec09ea78751da39a4957a9
sha256 fcd7674859c9d376b22081268188aec4878dd7bf1b53b7bf6df2daed02640147
sha512 c9e04138f1123ff710d38e475a5c874353f7ec9c0549e5881c6b2812cc82e39f63f9705bc1d21622130dea9fe8386d41f3671d270478ee30efc6cc189d1c41ee
ripemd-160 9b5af22956ee9daa5ec41555549e00814bb08a98

21542747 as geometric shapes

Circle

Radius = n
Diameter 43085494
Circumference 135357071.42669
Area 1.457981572203E+15

Sphere

Radius = n
Volume 4.1878570854176E+22
Surface area 5.8319262888121E+15
Circumference 135357071.42669

Square

Length = n
Perimeter 86170988
Area 464089948306009
Diagonal 30466044.978172

Cube

Length = n
Surface area 2784539689836054
Volume 9.9977723415994E+21
Space diagonal 37313132.338602

Equilateral Triangle

Length = n
Perimeter 64628241
Area 2.0095684243701E+14
Altitude 18656566.169301

Triangular Pyramid

Length = n
Surface area 2.0095684243701E+14
Volume 1.1782487699174E+21
Height 10155348.326057