28131807 (number)

28131807 is an odd 8-digits composite number following 28131806 and preceding 28131808. In scientific notation, it is written as 2.8131807 × 10^7. The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors. There are 17011680 positive integers (up to 28131807) that are relatively prime to 28131807.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8131807 × 10^7
Engineering notation 2.8131807 × 10^6

Prime Factorization of 28131807

Prime Factorization 3 × 11 × 733 × 1163

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 28131807
Product of the distinct prime numbers

The prime factorization of 28131807 is 3 × 11 × 733 × 1163. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 2, 58, 21, 215, 180, 6921, 8848, 26072, 87849, 192161, 337046, 9613034, 6383014, 92366095, 26213158, 219142229, 522316710, 8471341077, 4264495581

Basic calculations (n = 28131807)

Multiplication

n×y
n×2 56263614
n×3 84395421
n×4 112527228
n×5 140659035

Division

n÷y
n÷2 14065903.5
n÷3 9377269
n÷3 7032951.75
n÷5 5626361.4

Exponentiation

ny
n2 791398565085249
n3 2.2263471693055E+22
n4 6.2631168881899E+29
n5 1.76192795517E+37

Nth Root

y√n
2√n 5303.942590187
3√n 304.13463205087
4√n 72.828171679557
5√n 30.891537626441

Divisors of 28131807

1, 3, 11, 33, 733, 1163, 2199, 3489, 8063, 12793, 24189, 38379, 852479, 2557437, 9377269, 28131807

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 -28131806
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 28131807 can be divided by 16 positive divisors. The sum of these divisors (counting 28131807) is 1, the average is 0.0625.

Base conversion 28131807

Base System Value
2 Binary 1101011010100000111011111
3 Ternary 1221221020120210
4 Quaternary 1223110013133
5 Quinary 24200204212
6 Senary 2442543503
8 Octal 153240737
10 Decimal 28131807
12 Duodecimal 9507b93
16 Hexadecimal 1ad41df
20 Vigesimal 8fg9a7
36 Base36 gqyn3

Cryptographic Hash Functions

md5 81ffcfd2572438598dd8865b6f2de45e
sha1 f6424049cdaa24353838b0c0560672b201eea1a0
sha256 3e7aaf3b4de6f0209b99b3aa1e8675b9671a001732f5ec46e46366954deffedf
sha512 0f58c9fd9c75c0410236ee6d7c054ecd629412baae22f3fead99776e97b1f760575129b79648d5dafc6c6ce11709acacbbd8d861746a3990e6d94da219c770aa
ripemd-160 4e87b02310b286b89fd082fbe378b3f9adbbccfe

28131807 as geometric shapes

Circle

Radius = n
Diameter 56263614
Circumference 176757356.40681
Area 2.4862519181333E+15

Sphere

Radius = n
Volume 9.3257012152409E+22
Surface area 9.9450076725333E+15
Circumference 176757356.40681

Square

Length = n
Perimeter 112527228
Area 791398565085249
Diagonal 39784382.993462

Cube

Length = n
Surface area 4748391390511494
Volume 2.2263471693055E+22
Space diagonal 48725719.032722

Equilateral Triangle

Length = n
Perimeter 84395421
Area 3.4268563094119E+14
Altitude 24362859.516361

Triangular Pyramid

Length = n
Surface area 3.4268563094119E+14
Volume 2.6237753011523E+21
Height 13261460.997821