81572068 (number)

81572068 is an even 8-digits composite number following 81572067 and preceding 81572069. In scientific notation, it is written as 8.1572068 × 10^7. The sum of its digits is 37. It has a total of 4 prime factors and 12 positive divisors. There are 40103904 positive integers (up to 81572068) that are relatively prime to 81572068.

Interesting facts

Basic properties

Name

Name eighty-one million five hundred seventy-two thousand sixty-eight

Notation

Scientific notation 8.1572068 × 10^7
Engineering notation 8.1572068 × 10^6

Prime Factorization of 81572068

Prime Factorization 2 × 2 × 22991 × 887

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 40786034
Product of the distinct prime numbers

The prime factorization of 81572068 is 2 × 2 × 22991 × 887. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 10, 96, 73, 122, 483, 8390, 832, 21802, 67098, 460733, 653461, 869206, 4870131, 12454640, 92328205, 49304253, 562249392, 2484845240, 3500584369

Basic calculations (n = 81572068)

Multiplication

n×y
n×2 163144136
n×3 244716204
n×4 326288272
n×5 407860340

Division

n÷y
n÷2 40786034
n÷3 27190689.333333
n÷3 20393017
n÷5 16314413.6

Exponentiation

ny
n2 6654002277796624
n3 5.4278072627658E+23
n4 4.4275746312923E+31
n5 3.6116641889885E+39

Nth Root

y√n
2√n 9031.7256379941
3√n 433.69108103523
4√n 95.035391502293
5√n 38.221549954496

Divisors of 81572068

1, 2, 4, 887, 1774, 3548, 22991, 45982, 91964, 20393017, 40786034, 81572068

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81572067
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81572068 can be divided by 12 positive divisors. The sum of these divisors (counting 81572068) is 1, the average is 0.083333333333333.

Base conversion 81572068

Base System Value
2 Binary 100110111001011000011100100
3 Ternary 12200111021211201
4 Quaternary 10313023003210
5 Quinary 131340301233
6 Senary 12032212244
8 Octal 467130344
10 Decimal 81572068
12 Duodecimal 2339a084
16 Hexadecimal 4dcb0e4
20 Vigesimal 159ga38
36 Base36 1ckdes

Cryptographic Hash Functions

md5 802933f23b0db82cf5252ba94f26e972
sha1 8618e745a2eedf92f4bd0cd2cf896eb58926e7af
sha256 b181a2190deac7ea1d7281cc7ac22a7152475bbcf7f5d1480eb7e7c0d04342c9
sha512 4be23a1c427335f6d5c5945e85873c808360d6db54b32fdbd8e7c10396d822cc7d233edcd8921ac15962dd7e7945ece4bcf3df323fc7336c5246e64c3ee8406e
ripemd-160 6f0749c4dea9b43f0d7bb9fe3dd7ed88bb07ec0d

81572068 as geometric shapes

Circle

Radius = n
Diameter 163144136
Circumference 512532419.13385
Area 2.0904164672896E+16

Sphere

Radius = n
Volume 2.2735945895742E+24
Surface area 8.3616658691582E+16
Circumference 512532419.13385

Square

Length = n
Perimeter 326288272
Area 6654002277796624
Diagonal 115360324.87642

Cube

Length = n
Surface area 39924013666779744
Volume 5.4278072627658E+23
Space diagonal 141286966.25446

Equilateral Triangle

Length = n
Perimeter 244716204
Area 2.8812675047057E+15
Altitude 70643483.127232

Triangular Pyramid

Length = n
Surface area 2.8812675047057E+15
Volume 6.3967322041255E+22
Height 38453441.625473