28751749 (number)

28751749 is an odd 8-digits composite number following 28751748 and preceding 28751750. In scientific notation, it is written as 2.8751749 × 10^7. The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors. There are 26335920 positive integers (up to 28751749) that are relatively prime to 28751749.

Interesting facts

Basic properties

Name

Name twenty-eight million seven hundred fifty-one thousand seven hundred forty-nine

Notation

Scientific notation 2.8751749 × 10^7
Engineering notation 2.8751749 × 10^6

Prime Factorization of 28751749

Prime Factorization 13 × 131 × 16883

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 28751749
Product of the distinct prime numbers

The prime factorization of 28751749 is 13 × 131 × 16883. Since it has a total of 3 prime factors.

Most popular turbo-numbers

8, 3, 94, 29, 557, 786, 31, 2238, 94755, 26444, 369587, 158081, 2627279, 8450323, 58035024, 65374570, 564803053, 804473617, 9830752801, 4069368874

Basic calculations (n = 28751749)

Multiplication

n×y
n×2 57503498
n×3 86255247
n×4 115006996
n×5 143758745

Division

n÷y
n÷2 14375874.5
n÷3 9583916.3333333
n÷3 7187937.25
n÷5 5750349.8

Exponentiation

ny
n2 826663070559001
n3 2.3768009112282E+22
n4 6.8337183222604E+29
n5 1.9648135393833E+37

Nth Root

y√n
2√n 5362.0657399924
3√n 306.35249580531
4√n 73.22612744091
5√n 31.026504765661

Divisors of 28751749

1, 13, 131, 1703, 16883, 219479, 2211673, 28751749

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 -28751748
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 28751749 can be divided by 8 positive divisors. The sum of these divisors (counting 28751749) is 1, the average is 0.125.

Base conversion 28751749

Base System Value
2 Binary 1101101101011011110000101
3 Ternary 2000002201222121
4 Quaternary 1231223132011
5 Quinary 24330023444
6 Senary 2504125541
8 Octal 155533605
10 Decimal 28751749
12 Duodecimal 97668b1
16 Hexadecimal 1b6b785
20 Vigesimal 8jdj79
36 Base36 h48zp

Cryptographic Hash Functions

md5 0c94a5f3984769df9546abc8e6098a1b
sha1 8e318974ab3726a1ddc00e638fed90ad98fe7c30
sha256 cbbd400df0fb382bee2eff7ce51f6423e1a296aedda9deaaa98b3c7c88aadd95
sha512 18d3e81d3bc2484ef9d668ae2b7c134527ff89b9682069467f6daa3fbc4418ac838dceaad49c7282a229d646d38df8ff9df537ad461adc19cc61eadea9037257
ripemd-160 1a1a2a49bfe623e969d6a2021a30f55e1a854b05

28751749 as geometric shapes

Circle

Radius = n
Diameter 57503498
Circumference 180652566.87252
Area 2.5970386294621E+15

Sphere

Radius = n
Volume 9.9559203756799E+22
Surface area 1.0388154517849E+16
Circumference 180652566.87252

Square

Length = n
Perimeter 115006996
Area 826663070559001
Diagonal 40661113.377747

Cube

Length = n
Surface area 4959978423354006
Volume 2.3768009112282E+22
Space diagonal 49799490.074468

Equilateral Triangle

Length = n
Perimeter 86255247
Area 3.5795560973727E+14
Altitude 24899745.037234

Triangular Pyramid

Length = n
Surface area 3.5795560973727E+14
Volume 2.801086736433E+21
Height 13553704.459249