28691290 (number)

28691290 is an even 8-digits composite number following 28691289 and preceding 28691291. In scientific notation, it is written as 2.8691290 × 10^7. The sum of its digits is 37. It has a total of 4 prime factors and 16 positive divisors. There are 11442240 positive integers (up to 28691290) that are relatively prime to 28691290.

Interesting facts

Basic properties

Name

Name twenty-eight million six hundred ninety-one thousand two hundred ninety

Notation

Scientific notation 2.8691290 × 10^7
Engineering notation 2.8691290 × 10^6

Prime Factorization of 28691290

Prime Factorization 2 × 5 × 349 × 8221

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 28691290
Product of the distinct prime numbers

The prime factorization of 28691290 is 2 × 5 × 349 × 8221. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 3, 56, 19, 515, 70, 8450, 889, 11381, 47323, 80271, 875029, 6248347, 4100314, 37056774, 36509269, 41727002, 920344164, 2904205846, 8891885523

Basic calculations (n = 28691290)

Multiplication

n×y
n×2 57382580
n×3 86073870
n×4 114765160
n×5 143456450

Division

n÷y
n÷2 14345645
n÷3 9563763.3333333
n÷3 7172822.5
n÷5 5738258

Exponentiation

ny
n2 823190121864100
n3 2.3618386511538E+22
n4 6.7764197673463E+29
n5 1.9442422470667E+37

Nth Root

y√n
2√n 5356.4251138236
3√n 306.13761307225
4√n 73.187602186597
5√n 31.013445308026

Divisors of 28691290

1, 2, 5, 10, 349, 698, 1745, 3490, 8221, 16442, 41105, 82210, 2869129, 5738258, 14345645, 28691290

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 -28691289
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 28691290 can be divided by 16 positive divisors. The sum of these divisors (counting 28691290) is 1, the average is 0.0625.

Base conversion 28691290

Base System Value
2 Binary 1101101011100101101011010
3 Ternary 1222222200001101
4 Quaternary 1231130231122
5 Quinary 24321110130
6 Senary 2502542014
8 Octal 155345532
10 Decimal 28691290
12 Duodecimal 973790a
16 Hexadecimal 1b5cb5a
20 Vigesimal 8j684a
36 Base36 h2yca

Cryptographic Hash Functions

md5 af9eecd130a89a17e29e6e9ee2bb0865
sha1 ee132cefd97bedd86702258676281d0d1a6e9a91
sha256 b34d6006e098df2dcd26e3a64be3704f7b889779394a77642e9e992c5b1f1f30
sha512 2946beb2dc38d190682271ef2e24267a82a0555c25beb7b23de6a2e4d270110c05e1c15a0e9cacb71893fae759a2ec7d0761b4129953c4e138b533d1f60a382d
ripemd-160 9e4c098b6ff3b34fd88e0e89121af6cfa8e7b111

28691290 as geometric shapes

Circle

Radius = n
Diameter 57382580
Circumference 180272691.77203
Area 2.5861280393559E+15

Sphere

Radius = n
Volume 9.893246607239E+22
Surface area 1.0344512157424E+16
Circumference 180272691.77203

Square

Length = n
Perimeter 114765160
Area 823190121864100
Diagonal 40575611.43998

Cube

Length = n
Surface area 4939140731184600
Volume 2.3618386511538E+22
Space diagonal 49694772.014693

Equilateral Triangle

Length = n
Perimeter 86073870
Area 3.5645177883936E+14
Altitude 24847386.007346

Triangular Pyramid

Length = n
Surface area 3.5645177883936E+14
Volume 2.7834535438323E+21
Height 13525203.813327