81371750 (number)

81371750 is an even 8-digits composite number following 81371749 and preceding 81371751. In scientific notation, it is written as 8.1371750 × 10^7. The sum of its digits is 32. It has a total of 5 prime factors and 16 positive divisors. There are 32548600 positive integers (up to 81371750) that are relatively prime to 81371750.

Interesting facts

Basic properties

Name

Name eighty-one million three hundred seventy-one thousand seven hundred fifty

Notation

Scientific notation 8.1371750 × 10^7
Engineering notation 8.1371750 × 10^6

Prime Factorization of 81371750

Prime Factorization 2 × 5 × 5 × 5 × 325487

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 3254870
Product of the distinct prime numbers

The prime factorization of 81371750 is 2 × 5 × 5 × 5 × 325487. Since it has a total of 5 prime factors.

Most popular turbo-numbers

9, 7, 81, 5, 916, 112, 1178, 8813, 69958, 5529, 848746, 469883, 620630, 5384328, 21993402, 17971400, 844319384, 850122234, 4428400465, 357156206

Basic calculations (n = 81371750)

Multiplication

n×y
n×2 162743500
n×3 244115250
n×4 325487000
n×5 406858750

Division

n÷y
n÷2 40685875
n÷3 27123916.666667
n÷3 20342937.5
n÷5 16274350

Exponentiation

ny
n2 6621361698062500
n3 5.3879178875432E+23
n4 4.3842430736569E+31
n5 3.5675353132884E+39

Nth Root

y√n
2√n 9020.6291354872
3√n 433.33578236617
4√n 94.976992663946
5√n 38.202759217472

Divisors of 81371750

1, 2, 5, 10, 25, 50, 125, 250, 325487, 650974, 1627435, 3254870, 8137175, 16274350, 40685875, 81371750

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 -81371749
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 81371750 can be divided by 16 positive divisors. The sum of these divisors (counting 81371750) is 1, the average is 0.0625.

Base conversion 81371750

Base System Value
2 Binary 100110110011010001001100110
3 Ternary 12200010010001112
4 Quaternary 10312122021212
5 Quinary 131312344000
6 Senary 12024025022
8 Octal 466321146
10 Decimal 81371750
12 Duodecimal 23302172
16 Hexadecimal 4d9a266
20 Vigesimal 158b97a
36 Base36 1cg2ue

Cryptographic Hash Functions

md5 576ffe48700c05a8f47d33ad59499159
sha1 3dd5ec357f45a0892637f70339fea8c5677ff340
sha256 f751557639e70648165924f5a05b144350996ca2cb3ce8809b5f7f071db72235
sha512 bad014f527a65c6f967af04bbc364d739552080a5725dbcda8475e18cc90fc02b1a352dbb3648d1f9cdb1c79014a9d13bfae3529504ae75ce2b30af3946505ab
ripemd-160 c5f366d72b4152361fd694fa42ae808b8d384f80

81371750 as geometric shapes

Circle

Radius = n
Diameter 162743500
Circumference 511273784.01949
Area 2.0801621267394E+16

Sphere

Radius = n
Volume 2.2568857671534E+24
Surface area 8.3206485069576E+16
Circumference 511273784.01949

Square

Length = n
Perimeter 325487000
Area 6621361698062500
Diagonal 115077032.44403

Cube

Length = n
Surface area 39728170188375000
Volume 5.3879178875432E+23
Space diagonal 140940005.30079

Equilateral Triangle

Length = n
Perimeter 244115250
Area 2.8671337190837E+15
Altitude 70470002.650396

Triangular Pyramid

Length = n
Surface area 2.8671337190837E+15
Volume 6.3497221245968E+22
Height 38359010.814678