21506725 (number)

21506725 is an odd 8-digits composite number following 21506724 and preceding 21506726. In scientific notation, it is written as 2.1506725 × 10^7. The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors. There are 16262400 positive integers (up to 21506725) that are relatively prime to 21506725.

Interesting facts

Basic properties

Name

Name twenty-one million five hundred six thousand seven hundred twenty-five

Notation

Scientific notation 2.1506725 × 10^7
Engineering notation 2.1506725 × 10^6

Prime Factorization of 21506725

Prime Factorization 25 × 23 × 113 × 331

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21506725
Product of the distinct prime numbers

The prime factorization of 21506725 is 25 × 23 × 113 × 331. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 6, 49, 64, 122, 855, 6501, 1295, 39477, 90843, 295425, 595806, 9039376, 201234, 98248218, 15780774, 729097464, 636515989, 4264148390, 1433903498

Basic calculations (n = 21506725)

Multiplication

n×y
n×2 43013450
n×3 64520175
n×4 86026900
n×5 107533625

Division

n÷y
n÷2 10753362.5
n÷3 7168908.3333333
n÷3 5376681.25
n÷5 4301345

Exponentiation

ny
n2 462539220225625
n3 9.947703811107E+21
n4 2.1394253024693E+29
n5 4.6012031638249E+36

Nth Root

y√n
2√n 4637.5343664495
3√n 278.09387734058
4√n 68.099444685324
5√n 29.276210180137

Divisors of 21506725

1, 23, 25, 113, 331, 575, 2599, 2825, 7613, 8275, 37403, 64975, 190325, 860269, 935075, 21506725

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 -21506724
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 21506725 can be divided by 16 positive divisors. The sum of these divisors (counting 21506725) is 1, the average is 0.0625.

Base conversion 21506725

Base System Value
2 Binary 1010010000010101010100101
3 Ternary 1111110122200101
4 Quaternary 1102002222211
5 Quinary 21001203400
6 Senary 2044544101
8 Octal 122025245
10 Decimal 21506725
12 Duodecimal 7252031
16 Hexadecimal 1482aa5
20 Vigesimal 6e86g5
36 Base36 csyp1

Cryptographic Hash Functions

md5 a765d694225c02cd9121f47a140e3e54
sha1 6efa8cc82993b2553fbed01709e199c0f502f186
sha256 9ec1be6d30227285ffc74c390b4e4ca30d902f71f4c702a02d41a0932fd63333
sha512 ba855506221aab7b8900a467f791eabd4697a0f2c9c77217eb1d91ba5325d43775ba7a0e392dfe7b63c2c5be22bada77db524fa2677d2209dc593fef885b82b6
ripemd-160 20a2763486f5135ea3460d9b4f83d6b1c09ae98e

21506725 as geometric shapes

Circle

Radius = n
Diameter 43013450
Circumference 135130738.52555
Area 1.453109816258E+15

Sphere

Radius = n
Volume 4.1668844284081E+22
Surface area 5.8124392650319E+15
Circumference 135130738.52555

Square

Length = n
Perimeter 86026900
Area 462539220225625
Diagonal 30415102.177229

Cube

Length = n
Surface area 2775235321353750
Volume 9.947703811107E+21
Space diagonal 37250740.404412

Equilateral Triangle

Length = n
Perimeter 64520175
Area 2.0028535748102E+14
Altitude 18625370.202206

Triangular Pyramid

Length = n
Surface area 2.0028535748102E+14
Volume 1.1723481370115E+21
Height 10138367.39241