81005958 (number)

81005958 is an even 8-digits composite number following 81005957 and preceding 81005959. In scientific notation, it is written as 8.1005958 × 10^7. The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors. There are 24547200 positive integers (up to 81005958) that are relatively prime to 81005958.

Interesting facts

Basic properties

Name

Name eighty-one million five thousand nine hundred fifty-eight

Notation

Scientific notation 8.1005958 × 10^7
Engineering notation 8.1005958 × 10^6

Prime Factorization of 81005958

Prime Factorization 2 × 9 × 11 × 409121

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81005958
Product of the distinct prime numbers

The prime factorization of 81005958 is 2 × 9 × 11 × 409121. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 2, 66, 68, 312, 892, 2982, 5520, 27023, 38664, 331055, 671470, 1295179, 4085027, 95032799, 44242609, 51757624, 359290676, 579172195, 4366779479

Basic calculations (n = 81005958)

Multiplication

n×y
n×2 162011916
n×3 243017874
n×4 324023832
n×5 405029790

Division

n÷y
n÷2 40502979
n÷3 27001986
n÷3 20251489.5
n÷5 16201191.6

Exponentiation

ny
n2 6561965231497764
n3 5.3155827994017E+23
n4 4.3059387699385E+31
n5 3.4880669514821E+39

Nth Root

y√n
2√n 9000.3309939135
3√n 432.68547937897
4√n 94.87007428011
5√n 38.168350570248

Divisors of 81005958

1, 2, 9, 11, 18, 22, 99, 198, 409121, 818242, 3682089, 4500331, 7364178, 9000662, 40502979, 81005958

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 -81005957
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 81005958 can be divided by 16 positive divisors. The sum of these divisors (counting 81005958) is 1, the average is 0.0625.

Base conversion 81005958

Base System Value
2 Binary 100110101000000110110000110
3 Ternary 12122102112021200
4 Quaternary 10311000312012
5 Quinary 131214142313
6 Senary 12012123330
8 Octal 465006606
10 Decimal 81005958
12 Duodecimal 23166546
16 Hexadecimal 4d40d86
20 Vigesimal 1565ehi
36 Base36 1c88li

Cryptographic Hash Functions

md5 ec753c33a73da0e399ace3919a927090
sha1 416bd477927b85f317caa3ef2cd7f63138416fe3
sha256 8b287616649112cbec530ca0d2997a07002375edb4b74381c2fc3833d95ebe3c
sha512 acc432aa18285b67a2c723222926082e5f4f7aef821e70f57310f9e9d6a7d02ac35af93e6e866335e77211ff77f61fd6bb4ba3ed3291000cc01947264f07739f
ripemd-160 193ecd892939ff2109e6b96ae73ea32129facbe3

81005958 as geometric shapes

Circle

Radius = n
Diameter 162011916
Circumference 508975445.09961
Area 2.0615021764385E+16

Sphere

Radius = n
Volume 2.2265861162865E+24
Surface area 8.246008705754E+16
Circumference 508975445.09961

Square

Length = n
Perimeter 324023832
Area 6561965231497764
Diagonal 114559724.43663

Cube

Length = n
Surface area 39371791388986584
Volume 5.3155827994017E+23
Space diagonal 140306434.97179

Equilateral Triangle

Length = n
Perimeter 243017874
Area 2.8414142946136E+15
Altitude 70153217.485895

Triangular Pyramid

Length = n
Surface area 2.8414142946136E+15
Volume 6.2644744056925E+22
Height 38186574.812208