28931661 (number)

28931661 is an odd 8-digits composite number following 28931660 and preceding 28931662. In scientific notation, it is written as 2.8931661 × 10^7. The sum of its digits is 36. It has a total of 5 prime factors and 32 positive divisors. There are 16601760 positive integers (up to 28931661) that are relatively prime to 28931661.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8931661 × 10^7
Engineering notation 2.8931661 × 10^6

Prime Factorization of 28931661

Prime Factorization 11 × 3 × 27 × 19 × 1709

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 28931661
Product of the distinct prime numbers

The prime factorization of 28931661 is 11 × 3 × 27 × 19 × 1709. Since it has a total of 5 prime factors.

Most popular turbo-numbers

9, 8, 74, 83, 456, 827, 7797, 6632, 34944, 47665, 834836, 175949, 2696219, 4969286, 58826165, 98830798, 199282509, 801191550, 3579454188, 6152757697

Basic calculations (n = 28931661)

Multiplication

n×y
n×2 57863322
n×3 86794983
n×4 115726644
n×5 144658305

Division

n÷y
n÷2 14465830.5
n÷3 9643887
n÷3 7232915.25
n÷5 5786332.2

Exponentiation

ny
n2 837041008218921
n3 2.4216986692888E+22
n4 7.0063764944015E+29
n5 2.0270610957439E+37

Nth Root

y√n
2√n 5378.8159477714
3√n 306.99016049979
4√n 73.340411423522
5√n 31.065237164626

Divisors of 28931661

1, 3, 11, 19, 27, 33, 57, 81, 209, 297, 513, 627, 891, 1539, 1709, 5127, 5643, 16929, 18799, 32471, 46143, 56397, 97413, 138429, 357181, 507573, 876717, 1071543, 1522719, 2630151, 9643887, 28931661

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28931660
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28931661 can be divided by 32 positive divisors. The sum of these divisors (counting 28931661) is 1, the average is 0.03125.

Base conversion 28931661

Base System Value
2 Binary 1101110010111011001001101
3 Ternary 2000102212210000
4 Quaternary 1232113121031
5 Quinary 24401303121
6 Senary 2512034513
8 Octal 156273115
10 Decimal 28931661
12 Duodecimal 9832a39
16 Hexadecimal 1b9764d
20 Vigesimal 90g931
36 Base36 h83t9

Cryptographic Hash Functions

md5 e7db3e046b2a340daaca8908cdb97b79
sha1 d7e9e69da4f0301dd48a0531108e2c88d7bf9a61
sha256 0e6c8923e203e8613684be5776914a05b52a86fa67db87bf50aa0985261a867c
sha512 aa157230e272be1714db59e7aa0f29f40019be55d803e0c241238bf06eaa9c2b72f5c580b131ead70acc232584f7ef0edd9f674784aafc084e81dc5f42074386
ripemd-160 a9e00b43a0ee7f135d4d8f599849cdb9705f9874

28931661 as geometric shapes

Circle

Radius = n
Diameter 57863322
Circumference 181782987.3075
Area 2.629641882174E+15

Sphere

Radius = n
Volume 1.0143987664861E+23
Surface area 1.0518567528696E+16
Circumference 181782987.3075

Square

Length = n
Perimeter 115726644
Area 837041008218921
Diagonal 40915547.368181

Cube

Length = n
Surface area 5022246049313526
Volume 2.4216986692888E+22
Space diagonal 50111106.799359

Equilateral Triangle

Length = n
Perimeter 86794983
Area 3.6244938856346E+14
Altitude 25055553.399679

Triangular Pyramid

Length = n
Surface area 3.6244938856346E+14
Volume 2.8539992517409E+21
Height 13638515.789394