398979905 (number)

398979905 is an odd 9-digits composite number following 398979904 and preceding 398979906. In scientific notation, it is written as 3.98979905 × 10^8. The sum of its digits is 59. It has a total of 2 prime factors and 4 positive divisors. There are 319183920 positive integers (up to 398979905) that are relatively prime to 398979905.

Interesting facts

Basic properties

Name

Name three hundred ninety-eight million nine hundred seventy-nine thousand nine hundred five

Notation

Scientific notation 3.98979905 × 10^8
Engineering notation 3.98979905 × 10^6

Prime Factorization of 398979905

Prime Factorization 5 × 79795981

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 398979905
Product of the distinct prime numbers

The prime factorization of 398979905 is 5 × 79795981. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 9, 57, 42, 429, 153, 346, 648, 82706, 88582, 473845, 321713, 4862908, 7325075, 23756160, 8755069, 272593121, 110233789, 71994266, 7898941927

Basic calculations (n = 398979905)

Multiplication

n×y
n×2 797959810
n×3 1196939715
n×4 1595919620
n×5 1994899525

Division

n÷y
n÷2 199489952.5
n÷3 132993301.66667
n÷3 99744976.25
n÷5 79795981

Exponentiation

ny
n2 159184964593809025
n3 6.3511602051066E+25
n4 2.5339852952732E+34
n5 1.0110092123795E+43

Nth Root

y√n
2√n 19974.481344956
3√n 736.17942284544
4√n 141.33110536947
5√n 52.503735635887

Divisors of 398979905

1, 5, 79795981, 398979905

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 -398979904
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 398979905 can be divided by 4 positive divisors. The sum of these divisors (counting 398979905) is 1, the average is 0.25.

Base conversion 398979905

Base System Value
2 Binary 10111110001111111001101000001
3 Ternary 1000210202021112112
4 Quaternary 113301333031001
5 Quinary 1304114324110
6 Senary 103331305105
8 Octal 2761771501
10 Decimal 398979905
12 Duodecimal b174b195
16 Hexadecimal 17c7f341
20 Vigesimal 64dc9f5
36 Base36 6ljiv5

Cryptographic Hash Functions

md5 fe2609da9c0fc8bd374f740c4015a189
sha1 b4477b9c244100834b40d0dc1a68760354a3dd79
sha256 85578f2a86a9707c5fe58b87f81708f1a373b48d1b2c2eae2466c73be1485e8f
sha512 8fc1fe1ec725c17b1057f472934fe3018efbd3aa8d73abd21b21092ad3bf01810ff685ee256e4b299efe308ca0f8578b38c23a8ad1d072606a6a44d33bf7fed8
ripemd-160 e5f26ea0c4015dca9a59034502e8ace2bbefd886

398979905 as geometric shapes

Circle

Radius = n
Diameter 797959810
Circumference 2506864676.9559
Area 5.0009431532986E+17

Sphere

Radius = n
Volume 2.660367765618E+26
Surface area 2.0003772613194E+18
Circumference 2506864676.9559

Square

Length = n
Perimeter 1595919620
Area 159184964593809025
Diagonal 564242792.76533

Cube

Length = n
Surface area 955109787562854150
Volume 6.3511602051066E+25
Space diagonal 691053466.659

Equilateral Triangle

Length = n
Perimeter 1196939715
Area 6.8929111619383E+16
Altitude 345526733.3295

Triangular Pyramid

Length = n
Surface area 6.8929111619383E+16
Volume 7.4849140823884E+24
Height 188080930.92178