28491639 (number)

28491639 is an odd 8-digits composite number following 28491638 and preceding 28491640. In scientific notation, it is written as 2.8491639 × 10^7. The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors. There are 17104160 positive integers (up to 28491639) that are relatively prime to 28491639.

Interesting facts

Basic properties

Name

Name twenty-eight million four hundred ninety-one thousand six hundred thirty-nine

Notation

Scientific notation 2.8491639 × 10^7
Engineering notation 2.8491639 × 10^6

Prime Factorization of 28491639

Prime Factorization 33 × 107 × 8069

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 28491639
Product of the distinct prime numbers

The prime factorization of 28491639 is 33 × 107 × 8069. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28491639)

Multiplication

n×y
n×2 56983278
n×3 85474917
n×4 113966556
n×5 142458195

Division

n÷y
n÷2 14245819.5
n÷3 9497213
n÷3 7122909.75
n÷5 5698327.8

Exponentiation

ny
n2 811773492906321
n3 2.3128757309656E+22
n4 6.5897620378533E+29
n5 1.8775312107842E+37

Nth Root

y√n
2√n 5337.7559891775
3√n 305.42586393722
4√n 73.059947913871
5√n 30.970162678722

Divisors of 28491639

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28491638
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28491639 can be divided by 8 positive divisors. The sum of these divisors (counting 28491639) is 1, the average is 0.125.

Base conversion 28491639

Base System Value
2 Binary 1101100101011111101110111
3 Ternary 1222121112011220
4 Quaternary 1230223331313
5 Quinary 24243213024
6 Senary 2454401423
8 Octal 154537567
10 Decimal 28491639
12 Duodecimal 9660273
16 Hexadecimal 1b2bf77
20 Vigesimal 8i191j
36 Base36 gyoaf

Cryptographic Hash Functions

md5 1e9613bbba35447158869a6d944fad84
sha1 d6198cbdc4f787ac52196c05086f6274a1c1658b
sha256 696fcde42cf97f40e62db82e87667b4a3b1a5bf945ca8db617c87a368273f87a
sha512 57c4ef99a4368f4a9478a504607f5db5bbfd9d837e7446e757f94ac1d8376ffaf9eb16fec1ad2bb8f7fec3628c3125ab12fd2eb7a3d5bc3ccc44a265094652d4
ripemd-160 62c27245cfd146df1753364a3732fc604f11c41a

28491639 as geometric shapes

Circle

Radius = n
Diameter 56983278
Circumference 179018247.54226
Area 2.5502616416934E+15

Sphere

Radius = n
Volume 9.6881512067569E+22
Surface area 1.0201046566774E+16
Circumference 179018247.54226

Square

Length = n
Perimeter 113966556
Area 811773492906321
Diagonal 40293262.288038

Cube

Length = n
Surface area 4870640957437926
Volume 2.3128757309656E+22
Space diagonal 49348966.338911

Equilateral Triangle

Length = n
Perimeter 85474917
Area 3.5150823348785E+14
Altitude 24674483.169455

Triangular Pyramid

Length = n
Surface area 3.5150823348785E+14
Volume 2.7257501890126E+21
Height 13431087.429346