28931665 (number)

28931665 is an odd 8-digits composite number following 28931664 and preceding 28931666. In scientific notation, it is written as 2.8931665 × 10^7. The sum of its digits is 40. It has a total of 4 prime factors and 16 positive divisors. There are 19731456 positive integers (up to 28931665) that are relatively prime to 28931665.

Interesting facts

Basic properties

Name

Name twenty-eight million nine hundred thirty-one thousand six hundred sixty-five

Notation

Scientific notation 2.8931665 × 10^7
Engineering notation 2.8931665 × 10^6

Prime Factorization of 28931665

Prime Factorization 5 × 7 × 193 × 4283

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 28931665
Product of the distinct prime numbers

The prime factorization of 28931665 is 5 × 7 × 193 × 4283. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 1, 55, 15, 306, 557, 770, 7316, 96589, 85364, 872070, 899728, 1639274, 9156972, 15859202, 9448429, 493231197, 806988179, 9043372530, 7828141479

Basic calculations (n = 28931665)

Multiplication

n×y
n×2 57863330
n×3 86794995
n×4 115726660
n×5 144658325

Division

n÷y
n÷2 14465832.5
n÷3 9643888.3333333
n÷3 7232916.25
n÷5 5786333

Exponentiation

ny
n2 837041239672225
n3 2.4216996737382E+22
n4 7.0063803691202E+29
n5 2.0270624970196E+37

Nth Root

y√n
2√n 5378.8163196004
3√n 306.99017464762
4√n 73.340413958475
5√n 31.065238023622

Divisors of 28931665

1, 5, 7, 35, 193, 965, 1351, 4283, 6755, 21415, 29981, 149905, 826619, 4133095, 5786333, 28931665

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28931664
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28931665 can be divided by 16 positive divisors. The sum of these divisors (counting 28931665) is 1, the average is 0.0625.

Base conversion 28931665

Base System Value
2 Binary 1101110010111011001010001
3 Ternary 2000102212210011
4 Quaternary 1232113121101
5 Quinary 24401303130
6 Senary 2512034521
8 Octal 156273121
10 Decimal 28931665
12 Duodecimal 9832a41
16 Hexadecimal 1b97651
20 Vigesimal 90g935
36 Base36 h83td

Cryptographic Hash Functions

md5 e6c1ce73f8e1bc672aa8daf2454fad88
sha1 4d2e2b1b58cb7630372c2daff495a67d3b4ec163
sha256 a19833fde0f0223092723c966920d0db7d238582aa57218c045593df27230e7a
sha512 80e303cde48632b453c3b0827f787fbc8f877b5b9b9b336346c59d0256ea29148c8f8947e82855029bd4ac028c775b2f07bf51503b25701b212b4f9bfc1870f8
ripemd-160 c4d482b0340309f6d950f03bd644178a272b1b75

28931665 as geometric shapes

Circle

Radius = n
Diameter 57863330
Circumference 181783012.44024
Area 2.629642609306E+15

Sphere

Radius = n
Volume 1.0143991872289E+23
Surface area 1.0518570437224E+16
Circumference 181783012.44024

Square

Length = n
Perimeter 115726660
Area 837041239672225
Diagonal 40915553.025035

Cube

Length = n
Surface area 5022247438033350
Volume 2.4216996737382E+22
Space diagonal 50111113.727562

Equilateral Triangle

Length = n
Perimeter 86794995
Area 3.6244948878568E+14
Altitude 25055556.863781

Triangular Pyramid

Length = n
Surface area 3.6244948878568E+14
Volume 2.8540004354958E+21
Height 13638517.675012