1991231085 (number)

1991231085 is an odd 10-digits composite number following 1991231084 and preceding 1991231086. In scientific notation, it is written as 1.991231085 × 10^9. The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors. There are 1061989904 positive integers (up to 1991231085) that are relatively prime to 1991231085.

Interesting facts

Basic properties

Name

Name one billion nine hundred ninety-one million two hundred thirty-one thousand eighty-five

Notation

Scientific notation 1.991231085 × 10^9
Engineering notation 1.991231085 × 10^9

Prime Factorization of 1991231085

Prime Factorization 3 × 5 × 132748739

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 1991231085
Product of the distinct prime numbers

The prime factorization of 1991231085 is 3 × 5 × 132748739. Since it has a total of 3 prime factors.

Most popular turbo-numbers

4, 7, 22, 66, 939, 174, 2554, 8304, 94651, 31900, 24767, 892367, 3456004, 3755452, 66825249, 84922744, 817495846, 788725698, 3883380688, 1924541039

Basic calculations (n = 1991231085)

Multiplication

n×y
n×2 3982462170
n×3 5973693255
n×4 7964924340
n×5 9956155425

Division

n÷y
n÷2 995615542.5
n÷3 663743695
n÷3 497807771.25
n÷5 398246217

Exponentiation

ny
n2 3965001233870277225
n3 7.8952337089459E+27
n4 1.5721234784593E+37
n5 3.1304611397665E+46

Nth Root

y√n
2√n 44623.212401171
3√n 1258.0769954382
4√n 211.24207062319
5√n 72.414299298774

Divisors of 1991231085

1, 3, 5, 15, 132748739, 398246217, 663743695, 1991231085

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 -1991231084
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 1991231085 can be divided by 8 positive divisors. The sum of these divisors (counting 1991231085) is 1, the average is 0.125.

Base conversion 1991231085

Base System Value
2 Binary 1110110101011111100011001101101
3 Ternary 12010202212000112110
4 Quaternary 1312223330121231
5 Quinary 13034223343320
6 Senary 525330554233
8 Octal 16653743155
10 Decimal 1991231085
12 Duodecimal 476a38979
16 Hexadecimal 76afc66d
20 Vigesimal 1b253he5
36 Base36 wxizql

Cryptographic Hash Functions

md5 e6469fc25881c3ea4030be8e32e29d1d
sha1 3aaa2be98bc57f8682a76a355c7fb6f75e55c555
sha256 ba0001b4598ccc8d0023fc574f678c445077a2a3fb1610e732f2e62fa458515e
sha512 f9071b9294c87db32da7c780e6c531bd4c65f09613365ddbdf01b4a7a6e073b3779ef944ccb14cd675430692365cf6d1e6fe4ec6e77747f8a65fc45a03a6b070
ripemd-160 93e0ec58e1c1b301e0d3e6eb0fc0962779903f1d

1991231085 as geometric shapes

Circle

Radius = n
Diameter 3982462170
Circumference 12511273896.471
Area 1.2456418747801E+19

Sphere

Radius = n
Volume 3.3071477624532E+28
Surface area 4.9825674991205E+19
Circumference 12511273896.471

Square

Length = n
Perimeter 7964924340
Area 3965001233870277225
Diagonal 2816026006.2259

Cube

Length = n
Surface area 2.3790007403222E+19
Volume 7.8952337089459E+27
Space diagonal 3448913408.8305

Equilateral Triangle

Length = n
Perimeter 5973693255
Area 1.7168958972842E+18
Altitude 1724456704.4153

Triangular Pyramid

Length = n
Surface area 1.7168958972842E+18
Volume 9.304622157747E+26
Height 938675335.40863