123945905 (number)

123945905 is an odd 9-digits composite number following 123945904 and preceding 123945906. In scientific notation, it is written as 1.23945905 × 10^8. The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors. There are 95958000 positive integers (up to 123945905) that are relatively prime to 123945905.

Interesting facts

Basic properties

Name

Name one hundred twenty-three million nine hundred forty-five thousand nine hundred five

Notation

Scientific notation 1.23945905 × 10^8
Engineering notation 1.23945905 × 10^6

Prime Factorization of 123945905

Prime Factorization 5 × 31 × 799651

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 123945905
Product of the distinct prime numbers

The prime factorization of 123945905 is 5 × 31 × 799651. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 123945905)

Multiplication

n×y
n×2 247891810
n×3 371837715
n×4 495783620
n×5 619729525

Division

n÷y
n÷2 61972952.5
n÷3 41315301.666667
n÷3 30986476.25
n÷5 24789181

Exponentiation

ny
n2 15362587366269025
n3 1.9041297942538E+24
n4 2.3600909058625E+32
n5 2.925236032094E+40

Nth Root

y√n
2√n 11133.099523493
3√n 498.59057075148
4√n 105.51350398642
5√n 41.55721513468

Divisors of 123945905

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -123945904
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 123945905 can be divided by 8 positive divisors. The sum of these divisors (counting 123945905) is 1, the average is 0.125.

Base conversion 123945905

Base System Value
2 Binary 111011000110100001110110001
3 Ternary 22122020002211002
4 Quaternary 13120310032301
5 Quinary 223212232110
6 Senary 20144331345
8 Octal 730641661
10 Decimal 123945905
12 Duodecimal 35613b55
16 Hexadecimal 76343b1
20 Vigesimal 1ied4f5
36 Base36 21sl9t

Cryptographic Hash Functions

md5 2a5eea8191216cad349cadaa533094cc
sha1 f1bf83ae0add116587b87c33d2a954e3a54f9b72
sha256 64950e8d4b076c00c2d10d7d9c1f811106f63d8ece861c35235e724a4208fa08
sha512 253789b62d91b3e4d58392630954e2c9c9d003b037957c37ea5a340ba0f3c974b1e3baec1882365b5c186c11f3052d9c5ffb7c12e7887b03931177a5a5074e77
ripemd-160 5056f13e3886c1deb61548dca57348ecac8879fc

123945905 as geometric shapes

Circle

Radius = n
Diameter 247891810
Circumference 778775089.18108
Area 4.8262991610002E+16

Sphere

Radius = n
Volume 7.9760002308122E+24
Surface area 1.9305196644001E+17
Circumference 778775089.18108

Square

Length = n
Perimeter 495783620
Area 15362587366269025
Diagonal 175285979.85161

Cube

Length = n
Surface area 92175524197614150
Volume 1.9041297942538E+24
Space diagonal 214680604.85011

Equilateral Triangle

Length = n
Perimeter 371837715
Area 6.6521954635234E+15
Altitude 107340302.42505

Triangular Pyramid

Length = n
Surface area 6.6521954635234E+15
Volume 2.2440384829603E+23
Height 58428659.950536