28491640 (number)

28491640 is an even 8-digits composite number following 28491639 and preceding 28491641. In scientific notation, it is written as 2.8491640 × 10^7. The sum of its digits is 34. It has a total of 6 prime factors and 32 positive divisors. There are 10796544 positive integers (up to 28491640) that are relatively prime to 28491640.

Interesting facts

Basic properties

Name

Name twenty-eight million four hundred ninety-one thousand six hundred forty

Notation

Scientific notation 2.8491640 × 10^7
Engineering notation 2.8491640 × 10^6

Prime Factorization of 28491640

Prime Factorization 2 × 2 × 2 × 5 × 19 × 37489

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 7122910
Product of the distinct prime numbers

The prime factorization of 28491640 is 2 × 2 × 2 × 5 × 19 × 37489. Since it has a total of 6 prime factors.

Most popular turbo-numbers

2, 8, 66, 66, 93, 176, 9927, 6280, 92688, 79385, 244824, 202004, 4971971, 2022472, 83717511, 35916816, 389635203, 368556207, 1478102213, 3953267816

Basic calculations (n = 28491640)

Multiplication

n×y
n×2 56983280
n×3 85474920
n×4 113966560
n×5 142458200

Division

n÷y
n÷2 14245820
n÷3 9497213.3333333
n÷3 7122910
n÷5 5698328

Exponentiation

ny
n2 811773549889600
n3 2.3128759744977E+22
n4 6.5897629630036E+29
n5 1.8775315402723E+37

Nth Root

y√n
2√n 5337.7560828498
3√n 305.4258675105
4√n 73.059948554935
5√n 30.970162896121

Divisors of 28491640

1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 37489, 74978, 149956, 187445, 299912, 374890, 712291, 749780, 1424582, 1499560, 2849164, 3561455, 5698328, 7122910, 14245820, 28491640

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28491639
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28491640 can be divided by 32 positive divisors. The sum of these divisors (counting 28491640) is 1, the average is 0.03125.

Base conversion 28491640

Base System Value
2 Binary 1101100101011111101111000
3 Ternary 1222121112011221
4 Quaternary 1230223331320
5 Quinary 24243213030
6 Senary 2454401424
8 Octal 154537570
10 Decimal 28491640
12 Duodecimal 9660274
16 Hexadecimal 1b2bf78
20 Vigesimal 8i1920
36 Base36 gyoag

Cryptographic Hash Functions

md5 024a4970553a4d1dfeb19cf8bcd9ecad
sha1 3f1c985aa49f20ee12a9a7697560159257265897
sha256 cd25fc88ce0c1c07797e963b4f5ec495060ea867071fe620881a3ef680555daa
sha512 ada0ce2d81ec66bd9717c27a120f92f3b86be60b5f2d395501dc14db74d725417245f23a5d924080e19dac28d7b4cdc83a9cca7a584f097f263c089d99e8f212
ripemd-160 2746868ad1af5e5209cf1dfda8e009f1457573a3

28491640 as geometric shapes

Circle

Radius = n
Diameter 56983280
Circumference 179018253.82545
Area 2.5502618207117E+15

Sphere

Radius = n
Volume 9.6881522268615E+22
Surface area 1.0201047282847E+16
Circumference 179018253.82545

Square

Length = n
Perimeter 113966560
Area 811773549889600
Diagonal 40293263.702252

Cube

Length = n
Surface area 4870641299337600
Volume 2.3128759744977E+22
Space diagonal 49348968.070962

Equilateral Triangle

Length = n
Perimeter 85474920
Area 3.5150825816233E+14
Altitude 24674484.035481

Triangular Pyramid

Length = n
Surface area 3.5150825816233E+14
Volume 2.7257504760179E+21
Height 13431087.900751