389905781 (number)

389905781 is an odd 9-digits prime number following 389905780 and preceding 389905782. In scientific notation, it is written as 3.89905781 × 10^8. The sum of its digits is 50. It has a total of 1 prime factors and 2 positive divisors. There are 389905780 positive integers (up to 389905781) that are relatively prime to 389905781.

Interesting facts

Basic properties

Name

Name three hundred eighty-nine million nine hundred five thousand seven hundred eighty-one

Notation

Scientific notation 3.89905781 × 10^8
Engineering notation 3.89905781 × 10^6

Prime Factorization of 389905781

Prime Factorization 389905781

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 389905781
Product of the distinct prime numbers

The prime factorization of 389905781 is 389905781. Since it has a total of 1 prime factors.

Most popular turbo-numbers

4, 8, 84, 96, 459, 560, 1893, 5479, 69236, 88429, 661039, 46133, 8364055, 4159702, 60117363, 72522011, 315798284, 301115715, 4820712893, 6839478291

Basic calculations (n = 389905781)

Multiplication

n×y
n×2 779811562
n×3 1169717343
n×4 1559623124
n×5 1949528905

Division

n÷y
n÷2 194952890.5
n÷3 129968593.66667
n÷3 97476445.25
n÷5 77981156.2

Exponentiation

ny
n2 152026518057219961
n3 5.9276018255811E+25
n4 2.3112062192602E+34
n5 9.0115266597271E+42

Nth Root

y√n
2√n 19746.032031778
3√n 730.55551698036
4√n 140.52057511901
5√n 52.26271111279

Divisors of 389905781

1, 389905781

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 389905782
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 194952891
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 19746.032057099
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999999948706
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 389905781 can be divided by 2 positive divisors. The sum of these divisors (counting 389905781) is 389905782, the average is 194952891.

Base conversion 389905781

Base System Value
2 Binary 10111001111010111110101110101
3 Ternary 1000011200021011212
4 Quaternary 113033113311311
5 Quinary 1244303441111
6 Senary 102405011205
8 Octal 2717276565
10 Decimal 389905781
12 Duodecimal aa6b3b05
16 Hexadecimal 173d7d75
20 Vigesimal 61gi491
36 Base36 6g5185

Cryptographic Hash Functions

md5 c4e9f25b829ea63dd3db767f4a0f630a
sha1 b6271d832afa85c9229330cb76a0b19bb1e84de9
sha256 3576c4bf1cdd1ab27237920bd621043dfa9d533c05d1e9e8a38c7bbd3861438e
sha512 75b935eca6a535abfccec8d137d17694a4971ddd1a0bfd24e23da38cc808161ae4f01f4589aae09b291a16500999a3d6acfba13396e53149cc384da2dd30b369
ripemd-160 12a798bc05a788fd8e32612fd23a79f9f3f09256

389905781 as geometric shapes

Circle

Radius = n
Diameter 779811562
Circumference 2449850274.3636
Area 4.776053922794E+17

Sphere

Radius = n
Volume 2.4829480464868E+26
Surface area 1.9104215691176E+18
Circumference 2449850274.3636

Square

Length = n
Perimeter 1559623124
Area 152026518057219961
Diagonal 551410043.53787

Cube

Length = n
Surface area 912159108343319766
Volume 5.9276018255811E+25
Space diagonal 675336622.85682

Equilateral Triangle

Length = n
Perimeter 1169717343
Area 6.5829413343223E+16
Altitude 337668311.42841

Triangular Pyramid

Length = n
Surface area 6.5829413343223E+16
Volume 6.9857457450703E+24
Height 183803347.84596