28991660 (number)

28991660 is an even 8-digits composite number following 28991659 and preceding 28991661. In scientific notation, it is written as 2.8991660 × 10^7. The sum of its digits is 41. It has a total of 4 prime factors and 12 positive divisors. There are 11596656 positive integers (up to 28991660) that are relatively prime to 28991660.

Interesting facts

Basic properties

Name

Name twenty-eight million nine hundred ninety-one thousand six hundred sixty

Notation

Scientific notation 2.8991660 × 10^7
Engineering notation 2.8991660 × 10^6

Prime Factorization of 28991660

Prime Factorization 2 × 2 × 5 × 1449583

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 14495830
Product of the distinct prime numbers

The prime factorization of 28991660 is 2 × 2 × 5 × 1449583. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 8, 39, 56, 556, 844, 3941, 9289, 85029, 81756, 48960, 472261, 5297067, 6907090, 32393379, 43558123, 19692259, 224289824, 8873437132, 3518704750

Basic calculations (n = 28991660)

Multiplication

n×y
n×2 57983320
n×3 86974980
n×4 115966640
n×5 144958300

Division

n÷y
n÷2 14495830
n÷3 9663886.6666667
n÷3 7247915
n÷5 5798332

Exponentiation

ny
n2 840516349555600
n3 2.4367964230757E+22
n4 7.0646773387027E+29
n5 2.0481672341337E+37

Nth Root

y√n
2√n 5384.3904018932
3√n 307.20222788007
4√n 73.378405555676
5√n 31.078111219412

Divisors of 28991660

1, 2, 4, 5, 10, 20, 1449583, 2899166, 5798332, 7247915, 14495830, 28991660

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 -28991659
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 28991660 can be divided by 12 positive divisors. The sum of these divisors (counting 28991660) is 1, the average is 0.083333333333333.

Base conversion 28991660

Base System Value
2 Binary 1101110100110000010101100
3 Ternary 2000112221002012
4 Quaternary 1232212002230
5 Quinary 24410213120
6 Senary 2513220352
8 Octal 156460254
10 Decimal 28991660
12 Duodecimal 98616b8
16 Hexadecimal 1ba60ac
20 Vigesimal 913j30
36 Base36 h9e3w

Cryptographic Hash Functions

md5 4458f6eee9719a6cdadb1325705d191c
sha1 45f428a0a7a04432db41f8c357f454a315dcebc8
sha256 b4881c6b392668832b276d339d4b4869c3f4ec66e622cfee027e6eb54ad4ef9b
sha512 90fadbad8d74198dfe80fe90fbb13c0f98fa61889922efae37740682cb1d45cf30b1a2720ed2950bde812bed3a0cbc139fdd657d37276997c1523bf2aa0935e3
ripemd-160 c865b3517a439f0d710818e37840565de6a521c4

28991660 as geometric shapes

Circle

Radius = n
Diameter 57983320
Circumference 182159972.14275
Area 2.640559988986E+15

Sphere

Radius = n
Volume 1.0207228988038E+23
Surface area 1.0562239955944E+16
Circumference 182159972.14275

Square

Length = n
Perimeter 115966640
Area 840516349555600
Diagonal 41000398.76771

Cube

Length = n
Surface area 5043098097333600
Volume 2.4367964230757E+22
Space diagonal 50215028.115762

Equilateral Triangle

Length = n
Perimeter 86974980
Area 3.6395425550566E+14
Altitude 25107514.057881

Triangular Pyramid

Length = n
Surface area 3.6395425550566E+14
Volume 2.8717921252133E+21
Height 13666799.589237