812540981 (number)

812540981 is an odd 9-digits composite number following 812540980 and preceding 812540982. In scientific notation, it is written as 8.12540981 × 10^8. The sum of its digits is 38. It has a total of 3 prime factors and 6 positive divisors. There are 696463656 positive integers (up to 812540981) that are relatively prime to 812540981.

Interesting facts

Basic properties

Name

Name eight hundred twelve million five hundred forty thousand nine hundred eighty-one

Notation

Scientific notation 8.12540981 × 10^8
Engineering notation 8.12540981 × 10^6

Prime Factorization of 812540981

Prime Factorization 7 × 7 × 16582469

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 116077283
Product of the distinct prime numbers

The prime factorization of 812540981 is 7 × 7 × 16582469. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 8, 81, 18, 404, 603, 6822, 5651, 68214, 84896, 548794, 694702, 639795, 2257844, 51861846, 11098031, 137970341, 33283238, 4821460444, 161716791

Basic calculations (n = 812540981)

Multiplication

n×y
n×2 1625081962
n×3 2437622943
n×4 3250163924
n×5 4062704905

Division

n÷y
n÷2 406270490.5
n÷3 270846993.66667
n÷3 203135245.25
n÷5 162508196.2

Exponentiation

ny
n2 660222845804442361
n3 5.3645811880855E+26
n4 4.3589420612212E+35
n5 3.5418190585468E+44

Nth Root

y√n
2√n 28505.104472708
3√n 933.14347735488
4√n 168.83454762787
5√n 60.529774338916

Divisors of 812540981

1, 7, 49, 16582469, 116077283, 812540981

6 divisors

τ Total Divisors 6
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -812540980
Sum of the proper positive divisors of n
A Arithmetic Mean 0.16666666666667
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 6
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 812540981 can be divided by 6 positive divisors. The sum of these divisors (counting 812540981) is 1, the average is 0.16666666666667.

Base conversion 812540981

Base System Value
2 Binary 110000011011100110010000110101
3 Ternary 2002121221100200102
4 Quaternary 300123212100311
5 Quinary 3131002302411
6 Senary 212343323445
8 Octal 6033462065
10 Decimal 812540981
12 Duodecimal 1a8150585
16 Hexadecimal 306e6435
20 Vigesimal cdi7c91
36 Base36 dfrkmt

Cryptographic Hash Functions

md5 211cd581f710ad84248e62156b0bf933
sha1 2709437fec896c780e5afc498a16acbf92b38262
sha256 5742c5bd92c9cf3e0a414e4247375522556a9c0b5b2deaf9e4f6ad9f6d48c4e8
sha512 7a13d2aa7bd4db54855b0dbd589208051479ae2be69dfa155d4415f448f4e055aa40c89371932b4171b3aefd109ab95be90b6595d328be21ada619993073e2ae
ripemd-160 6bd1fcc3f306337773df1e90e35b771995145c63

812540981 as geometric shapes

Circle

Radius = n
Diameter 1625081962
Circumference 5105345553.3005
Area 2.0741512421114E+18

Sphere

Radius = n
Volume 2.2471105133434E+27
Surface area 8.2966049684455E+18
Circumference 5105345553.3005

Square

Length = n
Perimeter 3250163924
Area 660222845804442361
Diagonal 1149106475.3141

Cube

Length = n
Surface area 3961337074826654166
Volume 5.3645811880855E+26
Space diagonal 1407362262.3239

Equilateral Triangle

Length = n
Perimeter 2437622943
Area 2.8588487831275E+17
Altitude 703681131.16193

Triangular Pyramid

Length = n
Surface area 2.8588487831275E+17
Volume 6.3222195605351E+25
Height 383035491.77138