28821457 (number)

28821457 is an odd 8-digits composite number following 28821456 and preceding 28821458. In scientific notation, it is written as 2.8821457 × 10^7. The sum of its digits is 37. It has a total of 4 prime factors and 12 positive divisors. There are 24332616 positive integers (up to 28821457) that are relatively prime to 28821457.

Interesting facts

Basic properties

Name

Name twenty-eight million eight hundred twenty-one thousand four hundred fifty-seven

Notation

Scientific notation 2.8821457 × 10^7
Engineering notation 2.8821457 × 10^6

Prime Factorization of 28821457

Prime Factorization 7 × 7 × 67 × 8779

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 4117351
Product of the distinct prime numbers

The prime factorization of 28821457 is 7 × 7 × 67 × 8779. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 6, 20, 66, 218, 717, 2546, 1231, 44978, 64939, 13644, 654841, 364279, 9470132, 32278443, 50987876, 890112013, 901699147, 4261462833, 6894137732

Basic calculations (n = 28821457)

Multiplication

n×y
n×2 57642914
n×3 86464371
n×4 115285828
n×5 144107285

Division

n÷y
n÷2 14410728.5
n÷3 9607152.3333333
n÷3 7205364.25
n÷5 5764291.4

Exponentiation

ny
n2 830676383602849
n3 2.3941303670925E+22
n4 6.9002325427551E+29
n5 1.9887475552102E+37

Nth Root

y√n
2√n 5368.5619117227
3√n 306.59987767834
4√n 73.270470939682
5√n 31.041534816038

Divisors of 28821457

1, 7, 49, 67, 469, 3283, 8779, 61453, 430171, 588193, 4117351, 28821457

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28821456
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28821457 can be divided by 12 positive divisors. The sum of these divisors (counting 28821457) is 1, the average is 0.083333333333333.

Base conversion 28821457

Base System Value
2 Binary 1101101111100011111010001
3 Ternary 2000020021121101
4 Quaternary 1231330133101
5 Quinary 24334241312
6 Senary 2505424401
8 Octal 155743721
10 Decimal 28821457
12 Duodecimal 979b101
16 Hexadecimal 1b7c7d1
20 Vigesimal 902dch
36 Base36 h5qs1

Cryptographic Hash Functions

md5 876f60ecdaaf8fb53b926e5256e5487a
sha1 00a246ecb77df345dabcaa79af65f3231b1225b0
sha256 194abbd11e9342975ad5082db6a8ada604267c55cb7ec1914d99550ac2935db3
sha512 16af2534be105fda98e7892bbc47c9d37d99a17340b8b85fb97636426ad06c70ffe570563d0f674724c8e5991105cf16f73b3d2632d8cbb88805e0b1489836b9
ripemd-160 5c5090b849d8d9d639db2d4fc79cd4bba546c68f

28821457 as geometric shapes

Circle

Radius = n
Diameter 57642914
Circumference 181090555.15391
Area 2.6096468242372E+15

Sphere

Radius = n
Volume 1.0028509830659E+23
Surface area 1.0438587296949E+16
Circumference 181090555.15391

Square

Length = n
Perimeter 115285828
Area 830676383602849
Diagonal 40759695.376753

Cube

Length = n
Surface area 4984058301617094
Volume 2.3941303670925E+22
Space diagonal 49920227.872162

Equilateral Triangle

Length = n
Perimeter 86464371
Area 3.5969342526193E+14
Altitude 24960113.936081

Triangular Pyramid

Length = n
Surface area 3.5969342526193E+14
Volume 2.8215096960262E+21
Height 13586565.125584