1991002945 (number)

1991002945 is an odd 10-digits composite number following 1991002944 and preceding 1991002946. In scientific notation, it is written as 1.991002945 × 10^9. The sum of its digits is 40. It has a total of 4 prime factors and 16 positive divisors. There are 1566745600 positive integers (up to 1991002945) that are relatively prime to 1991002945.

Interesting facts

Basic properties

Name

Name one billion nine hundred ninety-one million two thousand nine hundred forty-five

Notation

Scientific notation 1.991002945 × 10^9
Engineering notation 1.991002945 × 10^9

Prime Factorization of 1991002945

Prime Factorization 5 × 71 × 449 × 12491

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 1991002945
Product of the distinct prime numbers

The prime factorization of 1991002945 is 5 × 71 × 449 × 12491. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 8, 58, 71, 211, 363, 301, 5822, 70701, 87210, 723856, 350827, 2700534, 1452283, 49904017, 11591616, 900071958, 608202327, 1297001984, 3036140567

Basic calculations (n = 1991002945)

Multiplication

n×y
n×2 3982005890
n×3 5973008835
n×4 7964011780
n×5 9955014725

Division

n÷y
n÷2 995501472.5
n÷3 663667648.33333
n÷3 497750736.25
n÷5 398200589

Exponentiation

ny
n2 3964092726998673025
n3 7.8925202937074E+27
n4 1.5714031148244E+37
n5 3.1286682293975E+46

Nth Root

y√n
2√n 44620.65603507
3√n 1258.0289466624
4√n 211.23601973875
5√n 72.412639887614

Divisors of 1991002945

1, 5, 71, 355, 449, 2245, 12491, 31879, 62455, 159395, 886861, 4434305, 5608459, 28042295, 398200589, 1991002945

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -1991002944
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 1991002945 can be divided by 16 positive divisors. The sum of these divisors (counting 1991002945) is 1, the average is 0.0625.

Base conversion 1991002945

Base System Value
2 Binary 1110110101011000100101101000001
3 Ternary 12010202102102120211
4 Quaternary 1312223010231001
5 Quinary 13034144043240
6 Senary 525322034121
8 Octal 16653045501
10 Decimal 1991002945
12 Duodecimal 476948941
16 Hexadecimal 76ac4b41
20 Vigesimal 1b23f775
36 Base36 wxe3pd

Cryptographic Hash Functions

md5 baf8ffb5164c327ba8978c5e6271f064
sha1 04343ff3ea1ff637e1830818f9c7bf51b9afbf70
sha256 ca69b45bdbbb39a04f595ee3970371fdd11402c73ae85cd8f2d9f3e1fc5d147f
sha512 8f55a35602093f3e1a8130001060826037f484cd84b25b78b614eb19eb28c8b6e7bea2851681129f44f45783daaf847c830ed21d33ef205a333204680b3078a9
ripemd-160 f056f8eeaa6284ab95bc7fc10801efe70ff270d6

1991002945 as geometric shapes

Circle

Radius = n
Diameter 3982005890
Circumference 12509840450.575
Area 1.2453564589288E+19

Sphere

Radius = n
Volume 3.306011169736E+28
Surface area 4.9814258357151E+19
Circumference 12509840450.575

Square

Length = n
Perimeter 7964011780
Area 3964092726998673025
Diagonal 2815703367.5438

Cube

Length = n
Surface area 2.3784556361992E+19
Volume 7.8925202937074E+27
Space diagonal 3448518258.7593

Equilateral Triangle

Length = n
Perimeter 5973008835
Area 1.716502502269E+18
Altitude 1724259129.3796

Triangular Pyramid

Length = n
Surface area 1.716502502269E+18
Volume 9.3014243672216E+26
Height 938567789.18126