291213921 (number)

291213921 is an odd 9-digits composite number following 291213920 and preceding 291213922. In scientific notation, it is written as 2.91213921 × 10^8. The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors. There are 192613680 positive integers (up to 291213921) that are relatively prime to 291213921.

Interesting facts

Basic properties

Name

Name two hundred ninety-one million two hundred thirteen thousand nine hundred twenty-one

Notation

Scientific notation 2.91213921 × 10^8
Engineering notation 2.91213921 × 10^6

Prime Factorization of 291213921

Prime Factorization 3 × 127 × 764341

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 291213921
Product of the distinct prime numbers

The prime factorization of 291213921 is 3 × 127 × 764341. Since it has a total of 3 prime factors.

Most popular turbo-numbers

9, 9, 59, 93, 451, 670, 509, 4025, 28225, 82351, 591573, 218054, 9624528, 4083300, 70325741, 12930609, 108070346, 540862551, 4074759596, 8435351587

Basic calculations (n = 291213921)

Multiplication

n×y
n×2 582427842
n×3 873641763
n×4 1164855684
n×5 1456069605

Division

n÷y
n÷2 145606960.5
n÷3 97071307
n÷3 72803480.25
n÷5 58242784.2

Exponentiation

ny
n2 84805547784194241
n3 2.4696556092788E+25
n4 7.1919809349773E+33
n5 2.094404967832E+42

Nth Root

y√n
2√n 17064.991092878
3√n 662.83288058233
4√n 130.63303982101
5√n 49.299489979672

Divisors of 291213921

1, 3, 127, 381, 764341, 2293023, 97071307, 291213921

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -291213920
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 291213921 can be divided by 8 positive divisors. The sum of these divisors (counting 291213921) is 1, the average is 0.125.

Base conversion 291213921

Base System Value
2 Binary 10001010110111001001001100001
3 Ternary 202021222012101210
4 Quaternary 101112321021201
5 Quinary 1044022321141
6 Senary 44521420333
8 Octal 2126711141
10 Decimal 291213921
12 Duodecimal 8163a6a9
16 Hexadecimal 115b9261
20 Vigesimal 4b01eg1
36 Base36 4tdq3l

Cryptographic Hash Functions

md5 520d8f79de80556be0ca363079acba53
sha1 54b6cd35e9f3f7f865baba96f30f80d3f2f36662
sha256 9acf174a7e7fc396b61013b900f4bc6be37dfa545cf3768df804b080aa0211a4
sha512 c3c069d10705092dfb98fcb4b255586237af66d46d17695aff93d00411a7c4f6a35c15c5619358dc544b29a28748fc5e1fc71acc710ee78f8768e32f4d3aaf10
ripemd-160 09e858d301f6da86d98e43bd4fa0748fc4ad2363

291213921 as geometric shapes

Circle

Radius = n
Diameter 582427842
Circumference 1829751029.6734
Area 2.6642448590248E+17

Sphere

Radius = n
Volume 1.0344869225343E+26
Surface area 1.0656979436099E+18
Circumference 1829751029.6734

Square

Length = n
Perimeter 1164855684
Area 84805547784194241
Diagonal 411838676.63005

Cube

Length = n
Surface area 508833286705165446
Volume 2.4696556092788E+25
Space diagonal 504397307.04335

Equilateral Triangle

Length = n
Perimeter 873641763
Area 3.6721879381484E+16
Altitude 252198653.52167

Triangular Pyramid

Length = n
Surface area 3.6721879381484E+16
Volume 2.9105170475274E+24
Height 137279558.87668