1661516821 (number)

1661516821 is an odd 10-digits composite number following 1661516820 and preceding 1661516822. In scientific notation, it is written as 1.661516821 × 10^9. The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors. There are 1661122444 positive integers (up to 1661516821) that are relatively prime to 1661516821.

Interesting facts

Basic properties

Name

Name one billion six hundred sixty-one million five hundred sixteen thousand eight hundred twenty-one

Notation

Scientific notation 1.661516821 × 10^9
Engineering notation 1.661516821 × 10^9

Prime Factorization of 1661516821

Prime Factorization 4259 × 390119

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 1661516821
Product of the distinct prime numbers

The prime factorization of 1661516821 is 4259 × 390119. Since it has a total of 2 prime factors.

Most popular turbo-numbers

6, 8, 51, 50, 608, 74, 530, 3387, 80915, 85718, 530223, 542519, 9739791, 5213257, 67664678, 36454315, 196373859, 620668432, 8814420430, 9974452295

Basic calculations (n = 1661516821)

Multiplication

n×y
n×2 3323033642
n×3 4984550463
n×4 6646067284
n×5 8307584105

Division

n÷y
n÷2 830758410.5
n÷3 553838940.33333
n÷3 415379205.25
n÷5 332303364.2

Exponentiation

ny
n2 2760638146465946041
n3 4.5868467170474E+27
n4 7.6211229757229E+36
n5 1.2662624019073E+46

Nth Root

y√n
2√n 40761.707778257
3√n 1184.4086781344
4√n 201.8952891433
5√n 69.839472179704

Divisors of 1661516821

1, 4259, 390119, 1661516821

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -1661516820
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 1661516821 can be divided by 4 positive divisors. The sum of these divisors (counting 1661516821) is 1, the average is 0.25.

Base conversion 1661516821

Base System Value
2 Binary 1100011000010001011110000010101
3 Ternary 11021210102210121001
4 Quaternary 1203002023300111
5 Quinary 11400322014241
6 Senary 432512023301
8 Octal 14302136025
10 Decimal 1661516821
12 Duodecimal 3a4531b31
16 Hexadecimal 6308bc15
20 Vigesimal 15j49c11
36 Base36 rh82l1

Cryptographic Hash Functions

md5 40d387698f6a91cda95f7dd9d1ed52d7
sha1 7c5984428d5708538bad7d29519faf35012cee4d
sha256 dd4680ad99cc3e1f4a945bb0d1013d6570b8c087b8f943e3fafb39e8fa942df5
sha512 9a731cb10c74285614d6cef24cd3027cecc7ec1fbf0f37291854e949535730457475a5eef14d1cf389b54069235159a91564e0afe79d2ba943e7d63815cfa8a4
ripemd-160 f30873c8c6160d0afe2c56ba655df03dffe466f6

1661516821 as geometric shapes

Circle

Radius = n
Diameter 3323033642
Circumference 10439618077.339
Area 8.6728005201572E+18

Sphere

Radius = n
Volume 1.9213338599225E+28
Surface area 3.4691202080629E+19
Circumference 10439618077.339

Square

Length = n
Perimeter 6646067284
Area 2760638146465946041
Diagonal 2349739622.3692

Cube

Length = n
Surface area 1.6563828878796E+19
Volume 4.5868467170474E+27
Space diagonal 2877831551.6023

Equilateral Triangle

Length = n
Perimeter 4984550463
Area 1.1953913827479E+18
Altitude 1438915775.8012

Triangular Pyramid

Length = n
Surface area 1.1953913827479E+18
Volume 5.4056506964792E+26
Height 783246540.78974