28397731 (number)

28397731 is an odd 8-digits composite number following 28397730 and preceding 28397732. In scientific notation, it is written as 2.8397731 × 10^7. The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors. There are 28383472 positive integers (up to 28397731) that are relatively prime to 28397731.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8397731 × 10^7
Engineering notation 2.8397731 × 10^6

Prime Factorization of 28397731

Prime Factorization 2393 × 11867

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 28397731
Product of the distinct prime numbers

The prime factorization of 28397731 is 2393 × 11867. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 7, 94, 68, 850, 793, 2585, 5456, 76950, 51817, 300667, 767975, 164127, 6063883, 54228231, 48008406, 716559620, 12407466, 2804886702, 5462695996

Basic calculations (n = 28397731)

Multiplication

n×y
n×2 56795462
n×3 85193193
n×4 113590924
n×5 141988655

Division

n÷y
n÷2 14198865.5
n÷3 9465910.3333333
n÷3 7099432.75
n÷5 5679546.2

Exponentiation

ny
n2 806431125948361
n3 2.2900814184709E+22
n4 6.5033116089834E+29
n5 1.8467929368109E+37

Nth Root

y√n
2√n 5328.9521484059
3√n 305.08993495828
4√n 72.99967224862
5√n 30.949720274672

Divisors of 28397731

1, 2393, 11867, 28397731

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28397730
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28397731 can be divided by 4 positive divisors. The sum of these divisors (counting 28397731) is 1, the average is 0.25.

Base conversion 28397731

Base System Value
2 Binary 1101100010101000010100011
3 Ternary 1222102202100211
4 Quaternary 1230111002203
5 Quinary 24232211411
6 Senary 2452354551
8 Octal 154250243
10 Decimal 28397731
12 Duodecimal 9615a57
16 Hexadecimal 1b150a3
20 Vigesimal 8h9e6b
36 Base36 gwntv

Cryptographic Hash Functions

md5 b183fa04997bf016866537f8fe2e58a0
sha1 d3237ce096ba0d7823221a431372842b9d730f66
sha256 ecb4795ece7df1d7e8287934b8432879a1d82f749b2d6212bbdb801a24071c54
sha512 0dd16534ff8ae0b524a4db27cdd9584b52d09ebd297a8a1cc98fa849d3005840ebe65eb77cebc75e9d8509f8a627cc9a4ce2e2ef30623c6518c84d0661fddd3e
ripemd-160 33db440e3002d3acc0a26a95adea1d97aad7bcbe

28397731 as geometric shapes

Circle

Radius = n
Diameter 56795462
Circumference 178428206.17644
Area 2.5334781009055E+15

Sphere

Radius = n
Volume 9.5926706138541E+22
Surface area 1.0133912403622E+16
Circumference 178428206.17644

Square

Length = n
Perimeter 113590924
Area 806431125948361
Diagonal 40160456.320823

Cube

Length = n
Surface area 4838586755690166
Volume 2.2900814184709E+22
Space diagonal 49186312.911674

Equilateral Triangle

Length = n
Perimeter 85193193
Area 3.4919492073688E+14
Altitude 24593156.455837

Triangular Pyramid

Length = n
Surface area 3.4919492073688E+14
Volume 2.6988868341168E+21
Height 13386818.773608