28331388 (number)

28331388 is an even 8-digits composite number following 28331387 and preceding 28331389. In scientific notation, it is written as 2.8331388 × 10^7. The sum of its digits is 36. It has a total of 5 prime factors and 18 positive divisors. There are 9443784 positive integers (up to 28331388) that are relatively prime to 28331388.

Interesting facts

Basic properties

Name

Name twenty-eight million three hundred thirty-one thousand three hundred eighty-eight

Notation

Scientific notation 2.8331388 × 10^7
Engineering notation 2.8331388 × 10^6

Prime Factorization of 28331388

Prime Factorization 2 × 2 × 3 × 3 × 786983

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 4721898
Product of the distinct prime numbers

The prime factorization of 28331388 is 2 × 2 × 3 × 3 × 786983. Since it has a total of 5 prime factors.

Most popular turbo-numbers

10, 10, 81, 30, 33, 922, 1071, 2179, 66860, 87357, 579896, 750277, 9975841, 497284, 42905617, 61096303, 779748850, 481340250, 4292512748, 8662706192

Basic calculations (n = 28331388)

Multiplication

n×y
n×2 56662776
n×3 84994164
n×4 113325552
n×5 141656940

Division

n÷y
n÷2 14165694
n÷3 9443796
n÷3 7082847
n÷5 5666277.6

Exponentiation

ny
n2 802667546006544
n3 2.2740685680919E+22
n4 6.4427518941217E+29
n5 1.825321037001E+37

Nth Root

y√n
2√n 5322.723738839
3√n 304.85216520932
4√n 72.956999245028
5√n 30.935245746705

Divisors of 28331388

1, 2, 3, 4, 6, 9, 12, 18, 36, 786983, 1573966, 2360949, 3147932, 4721898, 7082847, 9443796, 14165694, 28331388

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 -28331387
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 28331388 can be divided by 18 positive divisors. The sum of these divisors (counting 28331388) is 1, the average is 0.055555555555556.

Base conversion 28331388

Base System Value
2 Binary 1101100000100110101111100
3 Ternary 1222022101100200
4 Quaternary 1230010311330
5 Quinary 24223101023
6 Senary 2451123500
8 Octal 154046574
10 Decimal 28331388
12 Duodecimal 95a3590
16 Hexadecimal 1b04d7c
20 Vigesimal 8h1898
36 Base36 gv8n0

Cryptographic Hash Functions

md5 8c59d62444f8dbc77740afbfbe651414
sha1 33461522c8a889611102c46855b90c436a36a340
sha256 751c86e45a53102f6ca851cca5c505627f552643b2619e7d240ff7d16af1cf68
sha512 620d62120748668114ae2d1c2672dc9806d33668ceabf52851917094600e096dfe0c1d2f2d929f53a75f00e387bda20b69109bea423a8ec6f1dd92059b5e40e0
ripemd-160 557e7b58ed8d5642fcd477b5be299f856b2299a4

28331388 as geometric shapes

Circle

Radius = n
Diameter 56662776
Circumference 178011360.8136
Area 2.5216544658091E+15

Sphere

Radius = n
Volume 9.5255961430361E+22
Surface area 1.0086617863236E+16
Circumference 178011360.8136

Square

Length = n
Perimeter 113325552
Area 802667546006544
Diagonal 40066633.150454

Cube

Length = n
Surface area 4816005276039264
Volume 2.2740685680919E+22
Space diagonal 49071403.464947

Equilateral Triangle

Length = n
Perimeter 84994164
Area 3.4756524281749E+14
Altitude 24535701.732474

Triangular Pyramid

Length = n
Surface area 3.4756524281749E+14
Volume 2.6800155089683E+21
Height 13355544.383485