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 4 prime factors and 16 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 7 × 5 × 29 × 20983

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21297745
Product of the distinct prime numbers

The prime factorization of 21297745 is 7 × 5 × 29 × 20983. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 6, 59, 82, 151, 365, 8366, 496, 68234, 10212, 824696, 664945, 1711083, 5759111, 54381383, 94498720, 651202341, 401880228, 9909954965, 3160533998

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

1, 5, 7, 29, 35, 145, 203, 1015, 20983, 104915, 146881, 608507, 734405, 3042535, 4259549, 21297745

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 -21297744
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 21297745 can be divided by 16 positive divisors. The sum of these divisors (counting 21297745) is 1, the average is 0.0625.

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