28742720 (number)

28742720 is an even 8-digits composite number following 28742719 and preceding 28742721. In scientific notation, it is written as 2.8742720 × 10^7. The sum of its digits is 32. It has a total of 8 prime factors and 28 positive divisors. There are 11496960 positive integers (up to 28742720) that are relatively prime to 28742720.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8742720 × 10^7
Engineering notation 2.8742720 × 10^6

Prime Factorization of 28742720

Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 5 × 89821

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 8
Total number of prime factors
rad Radical 898210
Product of the distinct prime numbers

The prime factorization of 28742720 is 2 × 2 × 2 × 2 × 2 × 2 × 5 × 89821. Since it has a total of 8 prime factors.

Most popular turbo-numbers

1, 2, 76, 81, 282, 192, 3001, 9555, 81981, 59148, 144773, 349921, 388335, 7992995, 72196239, 24261305, 900295095, 369415236, 9626506525, 3621014140

Basic calculations (n = 28742720)

Multiplication

n×y
n×2 57485440
n×3 86228160
n×4 114970880
n×5 143713600

Division

n÷y
n÷2 14371360
n÷3 9580906.6666667
n÷3 7185680
n÷5 5748544

Exponentiation

ny
n2 826143952998400
n3 2.3745624320726E+22
n4 6.8251383107582E+29
n5 1.961730394274E+37

Nth Root

y√n
2√n 5361.223740901
3√n 306.32042417633
4√n 73.22037790739
5√n 31.024555851129

Divisors of 28742720

1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 89821, 179642, 359284, 449105, 718568, 898210, 1437136, 1796420, 2874272, 3592840, 5748544, 7185680, 14371360, 28742720

28 divisors

τ Total Divisors 28
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28742719
Sum of the proper positive divisors of n
A Arithmetic Mean 0.035714285714286
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 28
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28742720 can be divided by 28 positive divisors. The sum of these divisors (counting 28742720) is 1, the average is 0.035714285714286.

Base conversion 28742720

Base System Value
2 Binary 1101101101001010001000000
3 Ternary 2000002021121012
4 Quaternary 1231221101000
5 Quinary 24324231340
6 Senary 2504020052
8 Octal 155512100
10 Decimal 28742720
12 Duodecimal 9761628
16 Hexadecimal 1b69440
20 Vigesimal 8jcgg0
36 Base36 h420w

Cryptographic Hash Functions

md5 a839949854413ef23511bad414f8a731
sha1 45420b2a7a22538b2067aa27b954fc5dbe8c9322
sha256 28129124108394fb62a531ad429c4791f4ae3de5a457854fae95604594eed5f1
sha512 7c86ea1dab075711145cc1069e2072c6aec8007bbf65b0ef9cb28fa3c7c9ad41ce8c73a03b2bc8e3e84f18757f0ad6ec03b344e3375270d7321a52d6011d8a95
ripemd-160 f2cb55a4231709db0ee11f38782fe676297b41b9

28742720 as geometric shapes

Circle

Radius = n
Diameter 57485440
Circumference 180595835.99238
Area 2.5954077735474E+15

Sphere

Radius = n
Volume 9.9465438561195E+22
Surface area 1.038163109419E+16
Circumference 180595835.99238

Square

Length = n
Perimeter 114970880
Area 826143952998400
Diagonal 40648344.443492

Cube

Length = n
Surface area 4956863717990400
Volume 2.3745624320726E+22
Space diagonal 49783851.387726

Equilateral Triangle

Length = n
Perimeter 86228160
Area 3.5773082523976E+14
Altitude 24891925.693863

Triangular Pyramid

Length = n
Surface area 3.5773082523976E+14
Volume 2.7984486634489E+21
Height 13549448.147831