1991236021 (number)

1991236021 is an odd 10-digits composite number following 1991236020 and preceding 1991236022. In scientific notation, it is written as 1.991236021 × 10^9. The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors. There are 1976910444 positive integers (up to 1991236021) that are relatively prime to 1991236021.

Interesting facts

Basic properties

Name

Name one billion nine hundred ninety-one million two hundred thirty-six thousand twenty-one

Notation

Scientific notation 1.991236021 × 10^9
Engineering notation 1.991236021 × 10^9

Prime Factorization of 1991236021

Prime Factorization 139 × 14325439

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 1991236021
Product of the distinct prime numbers

The prime factorization of 1991236021 is 139 × 14325439. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 5, 34, 80, 829, 679, 5595, 9663, 93091, 67114, 282547, 153491, 3666388, 9584500, 43318893, 86394230, 22127846, 236137084, 1064287647, 1794428599

Basic calculations (n = 1991236021)

Multiplication

n×y
n×2 3982472042
n×3 5973708063
n×4 7964944084
n×5 9956180105

Division

n÷y
n÷2 995618010.5
n÷3 663745340.33333
n÷3 497809005.25
n÷5 398247204.2

Exponentiation

ny
n2 3965020891327912441
n3 7.8952924228297E+27
n4 1.5721390668667E+37
n5 3.1304999399663E+46

Nth Root

y√n
2√n 44623.267708674
3√n 1258.0780349732
4√n 211.24220153339
5√n 72.414335199843

Divisors of 1991236021

1, 139, 14325439, 1991236021

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 -1991236020
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 1991236021 can be divided by 4 positive divisors. The sum of these divisors (counting 1991236021) is 1, the average is 0.25.

Base conversion 1991236021

Base System Value
2 Binary 1110110101011111101100110110101
3 Ternary 12010202212021022021
4 Quaternary 1312223331212311
5 Quinary 13034224023041
6 Senary 525331033141
8 Octal 16653754665
10 Decimal 1991236021
12 Duodecimal 476a3b7b1
16 Hexadecimal 76afd9b5
20 Vigesimal 1b254a11
36 Base36 wxj3jp

Cryptographic Hash Functions

md5 3212fceefbcc304fad1075e18b3857dd
sha1 393596edef420ec4fb0fbaa886bfd53a7bb354f2
sha256 fec9953570f04b2b8d95c5f59dfac2a5f8bd4947bbb023b6d2cff22b4d85507d
sha512 66e08bc09270b50d6bf9b4f11887b5cd364189e5c8cc6aa97257062063811d32f9931b230e807fa9d8b272f7ffbdd97c0d2eea015787e5d40eea3015c3b31c26
ripemd-160 969a6932a7ef9ad655f8245bc1c7c3c55b532169

1991236021 as geometric shapes

Circle

Radius = n
Diameter 3982472042
Circumference 12511304910.274
Area 1.2456480503526E+19

Sphere

Radius = n
Volume 3.3071723564673E+28
Surface area 4.9825922014103E+19
Circumference 12511304910.274

Square

Length = n
Perimeter 7964944084
Area 3965020891327912441
Diagonal 2816032986.784

Cube

Length = n
Surface area 2.3790125347967E+19
Volume 7.8952924228297E+27
Space diagonal 3448921958.2333

Equilateral Triangle

Length = n
Perimeter 5973708063
Area 1.716904409213E+18
Altitude 1724460979.1166

Triangular Pyramid

Length = n
Surface area 1.716904409213E+18
Volume 9.3046913527227E+26
Height 938677662.26135