28742731 (number)

28742731 is an odd 8-digits prime number following 28742730 and preceding 28742732. In scientific notation, it is written as 2.8742731 × 10^7. The sum of its digits is 34. It has a total of 1 prime factors and 2 positive divisors. There are 28742730 positive integers (up to 28742731) that are relatively prime to 28742731.

Interesting facts

Basic properties

Name

Name twenty-eight million seven hundred forty-two thousand seven hundred thirty-one

Notation

Scientific notation 2.8742731 × 10^7
Engineering notation 2.8742731 × 10^6

Prime Factorization of 28742731

Prime Factorization 28742731

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 28742731
Product of the distinct prime numbers

The prime factorization of 28742731 is 28742731. Since it has a total of 1 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28742731)

Multiplication

n×y
n×2 57485462
n×3 86228193
n×4 114970924
n×5 143713655

Division

n÷y
n÷2 14371365.5
n÷3 9580910.3333333
n÷3 7185682.75
n÷5 5748546.2

Exponentiation

ny
n2 826144585338361
n3 2.3745651583487E+22
n4 6.8251487588389E+29
n5 1.9617341481029E+37

Nth Root

y√n
2√n 5361.224766786
3√n 306.32046325317
4√n 73.220384912851
5√n 31.024558225782

Divisors of 28742731

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 28742732
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 14371366
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 5361.2248600483
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999999304172
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28742731 can be divided by 2 positive divisors. The sum of these divisors (counting 28742731) is 28742732, the average is 14371366.

Base conversion 28742731

Base System Value
2 Binary 1101101101001010001001011
3 Ternary 2000002021121121
4 Quaternary 1231221101023
5 Quinary 24324231411
6 Senary 2504020111
8 Octal 155512113
10 Decimal 28742731
12 Duodecimal 9761637
16 Hexadecimal 1b6944b
20 Vigesimal 8jcggb
36 Base36 h4217

Cryptographic Hash Functions

md5 0bbb613de9f2945148f657e633b1f9f9
sha1 d90093c94b127a4a74ecfcd7f8f1d88f35223754
sha256 77a2aad2399c28fbc6b431c1bb380920fbb2f32098470c4e06581a26426350b6
sha512 72117c1913bd1b115a56f679f98290abba3a993180c0b63266d05c5ba2f9fe907b58a26a8810499564fefbaa186d60fd050f42c2c533380540b2ef138c055858
ripemd-160 24d25e59ee1f7791edbd836a073d27d008cc42c5

28742731 as geometric shapes

Circle

Radius = n
Diameter 57485462
Circumference 180595905.10742
Area 2.595409760102E+15

Sphere

Radius = n
Volume 9.9465552759181E+22
Surface area 1.0381639040408E+16
Circumference 180595905.10742

Square

Length = n
Perimeter 114970924
Area 826144585338361
Diagonal 40648359.999842

Cube

Length = n
Surface area 4956867512030166
Volume 2.3745651583487E+22
Space diagonal 49783870.440285

Equilateral Triangle

Length = n
Perimeter 86228193
Area 3.5773109905099E+14
Altitude 24891935.220143

Triangular Pyramid

Length = n
Surface area 3.5773109905099E+14
Volume 2.7984518763961E+21
Height 13549453.333281