28991916 (number)

28991916 is an even 8-digits composite number following 28991915 and preceding 28991917. In scientific notation, it is written as 2.8991916 × 10^7. The sum of its digits is 45. It has a total of 5 prime factors and 18 positive divisors. There are 9663960 positive integers (up to 28991916) that are relatively prime to 28991916.

Interesting facts

Basic properties

Name

Name twenty-eight million nine hundred ninety-one thousand nine hundred sixteen

Notation

Scientific notation 2.8991916 × 10^7
Engineering notation 2.8991916 × 10^6

Prime Factorization of 28991916

Prime Factorization 2 × 2 × 3 × 3 × 805331

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 4831986
Product of the distinct prime numbers

The prime factorization of 28991916 is 2 × 2 × 3 × 3 × 805331. Since it has a total of 5 prime factors.

Most popular turbo-numbers

1, 5, 29, 46, 323, 391, 8011, 1864, 62065, 95294, 139025, 730968, 1231076, 1254091, 36291166, 75385391, 785669123, 133374341, 4164254221, 3659192755

Basic calculations (n = 28991916)

Multiplication

n×y
n×2 57983832
n×3 86975748
n×4 115967664
n×5 144959580

Division

n÷y
n÷2 14495958
n÷3 9663972
n÷3 7247979
n÷5 5798383.2

Exponentiation

ny
n2 840531193351056
n3 2.4368609753014E+22
n4 7.0649268699615E+29
n5 2.0482576636007E+37

Nth Root

y√n
2√n 5384.4141742626
3√n 307.20313208883
4√n 73.378567540274
5√n 31.078166103944

Divisors of 28991916

1, 2, 3, 4, 6, 9, 12, 18, 36, 805331, 1610662, 2415993, 3221324, 4831986, 7247979, 9663972, 14495958, 28991916

18 divisors

τ Total Divisors 18
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28991915
Sum of the proper positive divisors of n
A Arithmetic Mean 0.055555555555556
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 18
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28991916 can be divided by 18 positive divisors. The sum of these divisors (counting 28991916) is 1, the average is 0.055555555555556.

Base conversion 28991916

Base System Value
2 Binary 1101110100110000110101100
3 Ternary 2000112221102200
4 Quaternary 1232212012230
5 Quinary 24410220131
6 Senary 2513221500
8 Octal 156460654
10 Decimal 28991916
12 Duodecimal 9861890
16 Hexadecimal 1ba61ac
20 Vigesimal 913jfg
36 Base36 h9eb0

Cryptographic Hash Functions

md5 7b1c5ca6a5ca8faaed242f04372441c3
sha1 b996b4dd2536c37f439ad27566e2b0bf9f704b8c
sha256 5e6a07ad6260d2be4a48364a44e4fec3f4559c469951e86438de658f75ae8aa2
sha512 a678e5a2aa294acacfa8594a4c3ac5fd21fee37c7e20b987a00033d3ff911a043b8b9d2252d3320d8cedbbe6077395729ff1d10f0d32c32d290280609c1bf3f6
ripemd-160 497a8db3024b6dde4b87197129522213afb161d4

28991916 as geometric shapes

Circle

Radius = n
Diameter 57983832
Circumference 182161580.63818
Area 2.6406066221447E+15

Sphere

Radius = n
Volume 1.0207499383769E+23
Surface area 1.0562426488579E+16
Circumference 182161580.63818

Square

Length = n
Perimeter 115967664
Area 840531193351056
Diagonal 41000760.806382

Cube

Length = n
Surface area 5043187160106336
Volume 2.4368609753014E+22
Space diagonal 50215471.520769

Equilateral Triangle

Length = n
Perimeter 86975748
Area 3.6396068305763E+14
Altitude 25107735.760385

Triangular Pyramid

Length = n
Surface area 3.6396068305763E+14
Volume 2.8718682007408E+21
Height 13666920.268794