85215981 (number)

85215981 is an odd 8-digits composite number following 85215980 and preceding 85215982. In scientific notation, it is written as 8.5215981 × 10^7. The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors. There are 55489392 positive integers (up to 85215981) that are relatively prime to 85215981.

Interesting facts

Basic properties

Name

Name eighty-five million two hundred fifteen thousand nine hundred eighty-one

Notation

Scientific notation 8.5215981 × 10^7
Engineering notation 8.5215981 × 10^6

Prime Factorization of 85215981

Prime Factorization 3 × 43 × 660589

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 85215981
Product of the distinct prime numbers

The prime factorization of 85215981 is 3 × 43 × 660589. Since it has a total of 3 prime factors.

Most popular turbo-numbers

10, 10, 48, 82, 742, 438, 5321, 3406, 50768, 83466, 681560, 752268, 5278500, 6389396, 93512546, 81192912, 449130269, 465142807, 2583344056, 2316247853

Basic calculations (n = 85215981)

Multiplication

n×y
n×2 170431962
n×3 255647943
n×4 340863924
n×5 426079905

Division

n÷y
n÷2 42607990.5
n÷3 28405327
n÷3 21303995.25
n÷5 17043196.2

Exponentiation

ny
n2 7261763417792361
n3 6.1881829343709E+23
n4 5.2733207935987E+31
n5 4.4937120455422E+39

Nth Root

y√n
2√n 9231.2502403521
3√n 440.05505681574
4√n 96.079395503677
5√n 38.55708648502

Divisors of 85215981

1, 3, 43, 129, 660589, 1981767, 28405327, 85215981

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 -85215980
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 85215981 can be divided by 8 positive divisors. The sum of these divisors (counting 85215981) is 1, the average is 0.125.

Base conversion 85215981

Base System Value
2 Binary 101000101000100101011101101
3 Ternary 12221100102100110
4 Quaternary 11011010223231
5 Quinary 133303402411
6 Senary 12242250233
8 Octal 505045355
10 Decimal 85215981
12 Duodecimal 24656979
16 Hexadecimal 5144aed
20 Vigesimal 16cbjj1
36 Base36 1eqh2l

Cryptographic Hash Functions

md5 6d58b907eb95d1c479c44b2013950c66
sha1 65d2548d4f76a50a29e14dbbc346a430ba8aed84
sha256 3d5e44cb7a508e94bd93563a2dd91163a3dbbe61b181b4e6dae283ff2cb66d3b
sha512 7a1d9939ff5e1e39b7fb6a882883581eeda361b688ead7576757b6ff58085d859f9ae3095810a322e32e611b98e38a8f4f4b596ecad49038a56dba5013913543
ripemd-160 a6d0b8828a45c3003b7e92394582fb2bbbffa624

85215981 as geometric shapes

Circle

Radius = n
Diameter 170431962
Circumference 535427799.75609
Area 2.2813502605444E+16

Sphere

Radius = n
Volume 2.5921000060919E+24
Surface area 9.1254010421774E+16
Circumference 535427799.75609

Square

Length = n
Perimeter 340863924
Area 7261763417792361
Diagonal 120513596.06113

Cube

Length = n
Surface area 43570580506754166
Volume 6.1881829343709E+23
Space diagonal 147598408.70882

Equilateral Triangle

Length = n
Perimeter 255647943
Area 3.1444357980403E+15
Altitude 73799204.354412

Triangular Pyramid

Length = n
Surface area 3.1444357980403E+15
Volume 7.2928435268609E+22
Height 40171198.687043