87218991 (number)

87218991 is an odd 8-digits composite number following 87218990 and preceding 87218992. In scientific notation, it is written as 8.7218991 × 10^7. The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors. There are 58000320 positive integers (up to 87218991) that are relatively prime to 87218991.

Interesting facts

Basic properties

Name

Name eighty-seven million two hundred eighteen thousand nine hundred ninety-one

Notation

Scientific notation 8.7218991 × 10^7
Engineering notation 8.7218991 × 10^6

Prime Factorization of 87218991

Prime Factorization 9 × 3 × 421 × 7673

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 87218991
Product of the distinct prime numbers

The prime factorization of 87218991 is 9 × 3 × 421 × 7673. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 9, 78, 35, 734, 588, 9541, 6806, 43005, 78559, 862312, 889820, 6711095, 8448244, 18577335, 91261218, 665928867, 28491583, 9849009090, 8591721206

Basic calculations (n = 87218991)

Multiplication

n×y
n×2 174437982
n×3 261656973
n×4 348875964
n×5 436094955

Division

n÷y
n÷2 43609495.5
n÷3 29072997
n÷3 21804747.75
n÷5 17443798.2

Exponentiation

ny
n2 7607152391058081
n3 6.6348815593132E+23
n4 5.7868767500781E+31
n5 5.0472555118317E+39

Nth Root

y√n
2√n 9339.1108249126
3√n 443.47623592802
4√n 96.639075041686
5√n 38.736663560226

Divisors of 87218991

1, 3, 9, 27, 421, 1263, 3789, 7673, 11367, 23019, 69057, 207171, 3230333, 9690999, 29072997, 87218991

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 -87218990
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 87218991 can be divided by 16 positive divisors. The sum of these divisors (counting 87218991) is 1, the average is 0.0625.

Base conversion 87218991

Base System Value
2 Binary 101001100101101101100101111
3 Ternary 20002010011222000
4 Quaternary 11030231230233
5 Quinary 134312001431
6 Senary 12353223343
8 Octal 514555457
10 Decimal 87218991
12 Duodecimal 25261b53
16 Hexadecimal 532db2f
20 Vigesimal 175279b
36 Base36 1fxelr

Cryptographic Hash Functions

md5 354fad1e182213259b428101cac9dcaf
sha1 fbed1324aa6704cd47430bc65ef77a88ee47ef03
sha256 d9ba74fbe3ca0cefa06a645750a348e96c2a23ed1a18897201df1a7bee00aa5e
sha512 29b770e81733f6f4e46abbc90617be6876c8a92c2b7d2846166ff3da40e951ae44f8ecca91775f5f94ea3961268d9d4e333f9f0a1e051ae5191735ec7af2ba42
ripemd-160 3545dd56cc01f003e3b039bdb04d88d48691a0c7

87218991 as geometric shapes

Circle

Radius = n
Diameter 174437982
Circumference 548013082.75823
Area 2.3898574066486E+16

Sphere

Radius = n
Volume 2.7792126885569E+24
Surface area 9.5594296265944E+16
Circumference 548013082.75823

Square

Length = n
Perimeter 348875964
Area 7607152391058081
Diagonal 123346279.9687

Cube

Length = n
Surface area 45642914346348486
Volume 6.6348815593132E+23
Space diagonal 151067723.79689

Equilateral Triangle

Length = n
Perimeter 261656973
Area 3.2939936105579E+15
Altitude 75533861.898446

Triangular Pyramid

Length = n
Surface area 3.2939936105579E+15
Volume 7.8192829049333E+22
Height 41115426.656232