28491738 (number)

28491738 is an even 8-digits composite number following 28491737 and preceding 28491739. In scientific notation, it is written as 2.8491738 × 10^7. The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors. There are 8633840 positive integers (up to 28491738) that are relatively prime to 28491738.

Interesting facts

Basic properties

Name

Name twenty-eight million four hundred ninety-one thousand seven hundred thirty-eight

Notation

Scientific notation 2.8491738 × 10^7
Engineering notation 2.8491738 × 10^6

Prime Factorization of 28491738

Prime Factorization 2 × 3 × 11 × 431693

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 28491738
Product of the distinct prime numbers

The prime factorization of 28491738 is 2 × 3 × 11 × 431693. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 5, 48, 31, 766, 825, 8313, 6518, 72838, 64732, 632174, 556610, 5080621, 2023613, 77535942, 40728335, 432935092, 433510979, 4473413879, 2687453020

Basic calculations (n = 28491738)

Multiplication

n×y
n×2 56983476
n×3 85475214
n×4 113966952
n×5 142458690

Division

n÷y
n÷2 14245869
n÷3 9497246
n÷3 7122934.5
n÷5 5698347.6

Exponentiation

ny
n2 811779134260644
n3 2.3128998407221E+22
n4 6.5898536282096E+29
n5 1.877563830333E+37

Nth Root

y√n
2√n 5337.7652627293
3√n 305.42621769159
4√n 73.060011379203
5√n 30.97018420112

Divisors of 28491738

1, 2, 3, 6, 11, 22, 33, 66, 431693, 863386, 1295079, 2590158, 4748623, 9497246, 14245869, 28491738

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 -28491737
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 28491738 can be divided by 16 positive divisors. The sum of these divisors (counting 28491738) is 1, the average is 0.0625.

Base conversion 28491738

Base System Value
2 Binary 1101100101011111111011010
3 Ternary 1222121112022120
4 Quaternary 1230223333122
5 Quinary 24243213423
6 Senary 2454402110
8 Octal 154537732
10 Decimal 28491738
12 Duodecimal 9660336
16 Hexadecimal 1b2bfda
20 Vigesimal 8i196i
36 Base36 gyod6

Cryptographic Hash Functions

md5 ce662958c96c83e77c2a5062e7246a2c
sha1 5220faa369233acab53cdaf5fac461993415b642
sha256 b5cb7474efa47ae96856e231cb1d75c550b2ca9f5ea75a73f8a652efb5107887
sha512 e5b8c57f15b66b27510460c0d51b5daf7fb77f653aa296de12d1fbe8e3237f3e9336ccb306706687f56b9fece2fc9b805b857de48859bde5990fdb15a64661e1
ripemd-160 ede2b26e464f062c45dfce292fab9182e20aca73

28491738 as geometric shapes

Circle

Radius = n
Diameter 56983476
Circumference 179018869.57761
Area 2.5502793645307E+15

Sphere

Radius = n
Volume 9.6882521974688E+22
Surface area 1.0201117458123E+16
Circumference 179018869.57761

Square

Length = n
Perimeter 113966952
Area 811779134260644
Diagonal 40293402.295181

Cube

Length = n
Surface area 4870674805563864
Volume 2.3128998407221E+22
Space diagonal 49349137.811941

Equilateral Triangle

Length = n
Perimeter 85475214
Area 3.5151067626593E+14
Altitude 24674568.90597

Triangular Pyramid

Length = n
Surface area 3.5151067626593E+14
Volume 2.7257786026331E+21
Height 13431134.098394