21297745 (number)

21297745 is an odd 8-digits composite number following 21297744 and preceding 21297746. In scientific notation, it is written as 2.1297745 × 10^7. The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors. There are 14099904 positive integers (up to 21297745) that are relatively prime to 21297745.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1297745 × 10^7
Engineering notation 2.1297745 × 10^6

Prime Factorization of 21297745

Prime Factorization 35 × 29 × 20983

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21297745
Product of the distinct prime numbers

The prime factorization of 21297745 is 35 × 29 × 20983. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21297745)

Multiplication

n×y
n×2 42595490
n×3 63893235
n×4 85190980
n×5 106488725

Division

n÷y
n÷2 10648872.5
n÷3 7099248.3333333
n÷3 5324436.25
n÷5 4259549

Exponentiation

ny
n2 453593942085025
n3 9.6605281120716E+21
n4 2.0574746429623E+29
n5 4.3819570289778E+36

Nth Root

y√n
2√n 4614.9479953733
3√n 277.19020157668
4√n 67.933408536399
5√n 29.21909258651

Divisors of 21297745

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21297744
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21297745 can be divided by 8 positive divisors. The sum of these divisors (counting 21297745) is 1, the average is 0.125.

Base conversion 21297745

Base System Value
2 Binary 1010001001111101001010001
3 Ternary 1111002001000101
4 Quaternary 1101033221101
5 Quinary 20423011440
6 Senary 2040252401
8 Octal 121175121
10 Decimal 21297745
12 Duodecimal 7171101
16 Hexadecimal 144fa51
20 Vigesimal 6d2475
36 Base36 cohg1

Cryptographic Hash Functions

md5 f20404450ab67797b79e44bffc407bcd
sha1 9d016d2a2ce145cd75cfc9c0d7d310efa34a95e6
sha256 5f754ea5b20e54ad20d51b085d9602eeb11842f51b623964cc774b99acfa8c7b
sha512 b694f71b6a9d60ec702e2264a7f8038053118b99bef0fb73d26ac32909fe132971eaba26a6bcb869d1517fc9d04663f4fcb34eb0effb6316d09e7f63ea285789
ripemd-160 8fb0459fd9d0eb73611035144bc3c7d2d15585d0

21297745 as geometric shapes

Circle

Radius = n
Diameter 42595490
Circumference 133817678.46006
Area 1.4250073961671E+15

Sphere

Radius = n
Volume 4.0465925528909E+22
Surface area 5.7000295846686E+15
Circumference 133817678.46006

Square

Length = n
Perimeter 85190980
Area 453593942085025
Diagonal 30119559.826964

Cube

Length = n
Surface area 2721563652510150
Volume 9.6605281120716E+21
Space diagonal 36888776.426646

Equilateral Triangle

Length = n
Perimeter 63893235
Area 1.9641193842418E+14
Altitude 18444388.213323

Triangular Pyramid

Length = n
Surface area 1.9641193842418E+14
Volume 1.1385041563149E+21
Height 10039853.275655