397391981 (number)

397391981 is an odd 9-digits composite number following 397391980 and preceding 397391982. In scientific notation, it is written as 3.97391981 × 10^8. The sum of its digits is 50. It has a total of 2 prime factors and 4 positive divisors. There are 340621692 positive integers (up to 397391981) that are relatively prime to 397391981.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 3.97391981 × 10^8
Engineering notation 3.97391981 × 10^6

Prime Factorization of 397391981

Prime Factorization 7 × 56770283

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 397391981
Product of the distinct prime numbers

The prime factorization of 397391981 is 7 × 56770283. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 7, 59, 53, 730, 968, 2623, 3717, 16532, 57207, 161289, 195935, 7683775, 642399, 34996229, 37644863, 36350460, 77002654, 6400916664, 1688613926

Basic calculations (n = 397391981)

Multiplication

n×y
n×2 794783962
n×3 1192175943
n×4 1589567924
n×5 1986959905

Division

n÷y
n÷2 198695990.5
n÷3 132463993.66667
n÷3 99347995.25
n÷5 79478396.2

Exponentiation

ny
n2 157920386563104361
n3 6.2756295256598E+25
n4 2.493884849224E+34
n5 9.9104984061902E+42

Nth Root

y√n
2√n 19934.692899566
3√n 735.20146944391
4√n 141.19027197214
5√n 52.461876391607

Divisors of 397391981

1, 7, 56770283, 397391981

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 -397391980
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 397391981 can be divided by 4 positive divisors. The sum of these divisors (counting 397391981) is 1, the average is 0.25.

Base conversion 397391981

Base System Value
2 Binary 10111101011111011100001101101
3 Ternary 1000200202121022112
4 Quaternary 113223323201231
5 Quinary 1303213020411
6 Senary 103233253405
8 Octal 2753734155
10 Decimal 397391981
12 Duodecimal b1104265
16 Hexadecimal 17afb86d
20 Vigesimal 643djj1
36 Base36 6klhm5

Cryptographic Hash Functions

md5 501184440e7fece38a9ce0367b5cf2e5
sha1 e724622146f8c64c03b01593020e5c5f124b3582
sha256 867b75741aaca416b982813694261a5380268a1eb042b297ddef8f1d7d838c16
sha512 c72a744b8261c3cb7b06d644d9e306a7c2692af22af8863c0341a2ca14ffcb218d4266806005d4bf20345e6e4565d90b2181d4fe1b6e2a2a129bdc95ce8b1d79
ripemd-160 e84ab815d5fa299571eebd4d1f5b565f1cb89baa

397391981 as geometric shapes

Circle

Radius = n
Diameter 794783962
Circumference 2496887456.2102
Area 4.9612152627871E+17

Sphere

Radius = n
Volume 2.6287295485952E+26
Surface area 1.9844861051148E+18
Circumference 2496887456.2102

Square

Length = n
Perimeter 1589567924
Area 157920386563104361
Diagonal 561997129.10851

Cube

Length = n
Surface area 947522319378626166
Volume 6.2756295256598E+25
Space diagonal 688303101.61245

Equilateral Triangle

Length = n
Perimeter 1192175943
Area 6.8381533269554E+16
Altitude 344151550.80622

Triangular Pyramid

Length = n
Surface area 6.8381533269554E+16
Volume 7.3959003230142E+24
Height 187332376.3695