28991057 (number)

28991057 is an odd 8-digits composite number following 28991056 and preceding 28991058. In scientific notation, it is written as 2.8991057 × 10^7. The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors. There are 28108944 positive integers (up to 28991057) that are relatively prime to 28991057.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8991057 × 10^7
Engineering notation 2.8991057 × 10^6

Prime Factorization of 28991057

Prime Factorization 47 × 109 × 5659

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 28991057
Product of the distinct prime numbers

The prime factorization of 28991057 is 47 × 109 × 5659. Since it has a total of 3 prime factors.

Most popular turbo-numbers

9, 2, 59, 50, 800, 333, 2643, 8969, 63825, 62376, 405059, 148261, 9405967, 3187041, 71863592, 57899544, 355665253, 987788386, 5728245105, 3585850935

Basic calculations (n = 28991057)

Multiplication

n×y
n×2 57982114
n×3 86973171
n×4 115964228
n×5 144955285

Division

n÷y
n÷2 14495528.5
n÷3 9663685.6666667
n÷3 7247764.25
n÷5 5798211.4

Exponentiation

ny
n2 840481385977249
n3 2.4366443768305E+22
n4 7.0640896017424E+29
n5 2.0479542429722E+37

Nth Root

y√n
2√n 5384.3344064053
3√n 307.20009802356
4√n 73.378024001777
5√n 31.077981939082

Divisors of 28991057

1, 47, 109, 5123, 5659, 265973, 616831, 28991057

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 -28991056
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 28991057 can be divided by 8 positive divisors. The sum of these divisors (counting 28991057) is 1, the average is 0.125.

Base conversion 28991057

Base System Value
2 Binary 1101110100101111001010001
3 Ternary 2000112220020212
4 Quaternary 1232211321101
5 Quinary 24410203212
6 Senary 2513213505
8 Octal 156457121
10 Decimal 28991057
12 Duodecimal 9861295
16 Hexadecimal 1ba5e51
20 Vigesimal 913hch
36 Base36 h9dn5

Cryptographic Hash Functions

md5 015bfd3b9a04e6d31ab3291848b9fa58
sha1 0aa0389d60b9bd635a6dc07f9f9039d390cefe69
sha256 2fac50aaaaf3899da3099d2fc05eabcb8dca1d9fb535473defb306035c83134f
sha512 3128a4ae80f281f08fcf5128677504e02da2aeb608cac8ae15763dab6e9a36b3f1831ab0f7463b0b12b71b5586434c79daa16f22bd0f2b1dca4328a0929b96c2
ripemd-160 d28563419ff3f26a77cdc0064855c530e6f4e688

28991057 as geometric shapes

Circle

Radius = n
Diameter 57982114
Circumference 182156183.38201
Area 2.6404501476651E+15

Sphere

Radius = n
Volume 1.0206592098216E+23
Surface area 1.056180059066E+16
Circumference 182156183.38201

Square

Length = n
Perimeter 115964228
Area 840481385977249
Diagonal 40999545.996931

Cube

Length = n
Surface area 5042888315863494
Volume 2.4366443768305E+22
Space diagonal 50213983.689125

Equilateral Triangle

Length = n
Perimeter 86973171
Area 3.6393911583213E+14
Altitude 25106991.844563

Triangular Pyramid

Length = n
Surface area 3.6393911583213E+14
Volume 2.8716129369949E+21
Height 13666515.33231