1645394021 (number)

1645394021 is an odd 10-digits composite number following 1645394020 and preceding 1645394022. In scientific notation, it is written as 1.645394021 × 10^9. The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors. There are 1645292844 positive integers (up to 1645394021) that are relatively prime to 1645394021.

Interesting facts

Basic properties

Name

Name one billion six hundred forty-five million three hundred ninety-four thousand twenty-one

Notation

Scientific notation 1.645394021 × 10^9
Engineering notation 1.645394021 × 10^9

Prime Factorization of 1645394021

Prime Factorization 20359 × 80819

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 1645394021
Product of the distinct prime numbers

The prime factorization of 1645394021 is 20359 × 80819. Since it has a total of 2 prime factors.

Most popular turbo-numbers

1, 7, 70, 68, 906, 297, 9066, 1925, 30354, 52195, 246839, 906339, 9807156, 4630388, 8480285, 1614804, 124405558, 917002621, 9562614419, 5734343245

Basic calculations (n = 1645394021)

Multiplication

n×y
n×2 3290788042
n×3 4936182063
n×4 6581576084
n×5 8226970105

Division

n÷y
n÷2 822697010.5
n÷3 548464673.66667
n÷3 411348505.25
n÷5 329078804.2

Exponentiation

ny
n2 2707321484342548441
n3 4.4546105832621E+27
n4 7.3295896195827E+36
n5 1.2060062936445E+46

Nth Root

y√n
2√n 40563.456719072
3√n 1180.5651848184
4√n 201.40371575289
5√n 69.703403256583

Divisors of 1645394021

1, 20359, 80819, 1645394021

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 -1645394020
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 1645394021 can be divided by 4 positive divisors. The sum of these divisors (counting 1645394021) is 1, the average is 0.25.

Base conversion 1645394021

Base System Value
2 Binary 1100010000100101011100001100101
3 Ternary 11020200002200021022
4 Quaternary 1202010223201211
5 Quinary 11332210102041
6 Senary 431134300525
8 Octal 14204534145
10 Decimal 1645394021
12 Duodecimal 39b057745
16 Hexadecimal 6212b865
20 Vigesimal 15e3e511
36 Base36 r7mi5h

Cryptographic Hash Functions

md5 84789c0c6d081b7f882123a9d7a7c220
sha1 b02e65c65dc5ae9bc92c08516ba4f372648bd300
sha256 31b092cef12e13d17d54a95fbbe64eb85c8202cc207c2a9971a4c48368d95cd4
sha512 c55ee4ba0f0cb92750aed49c5da52a1a2f12b1c1b419ee7eba254266709252dfeb5f0052e1efc09e5337972f98161838ad34c15a1be568daedafbc3e4e9c36a3
ripemd-160 776cde97427de2464dd67664383b944e97f8d625

1645394021 as geometric shapes

Circle

Radius = n
Diameter 3290788042
Circumference 10338315537.268
Area 8.5053012861164E+18

Sphere

Radius = n
Volume 1.8659429177306E+28
Surface area 3.4021205144465E+19
Circumference 10338315537.268

Square

Length = n
Perimeter 6581576084
Area 2707321484342548441
Diagonal 2326938539.9458

Cube

Length = n
Surface area 1.6243928906055E+19
Volume 4.4546105832621E+27
Space diagonal 2849906042.8421

Equilateral Triangle

Length = n
Perimeter 4936182063
Area 1.172304590826E+18
Altitude 1424953021.421

Triangular Pyramid

Length = n
Surface area 1.172304590826E+18
Volume 5.2498089182833E+26
Height 775646179.98193