397 (number)

397 is an odd 3-digits prime number following 396 and preceding 398. In scientific notation, it is written as 3.97 × 10^2. The sum of its digits is 19. It has a total of 1 prime factors and 2 positive divisors. There are 396 positive integers (up to 397) that are relatively prime to 397.

Interesting facts

Basic properties

Name

Name three hundred ninety-seven

Notation

Scientific notation 3.97 × 10^2
Engineering notation 3.97 × 10^0

Prime Factorization of 397

Prime Factorization 397

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 397
Product of the distinct prime numbers

The prime factorization of 397 is 397. Since it has a total of 1 prime factors.

Most popular turbo-numbers

Basic calculations (n = 397)

Multiplication

n×y
n×2 794
n×3 1191
n×4 1588
n×5 1985

Division

n÷y
n÷2 198.5
n÷3 132.33333333333
n÷3 99.25
n÷5 79.4

Exponentiation

ny
n2 157609
n3 62570773
n4 24840596881
n5 9861716961757

Nth Root

y√n
2√n 19.924858845171
3√n 7.3495965965525
4√n 4.4637270128415
5√n 3.3094673537988

Divisors of 397

1, 397

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 398
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 199
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 19.94993734326
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9949748743719
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 397 can be divided by 2 positive divisors. The sum of these divisors (counting 397) is 398, the average is 199.

Base conversion 397

Base System Value
2 Binary 110001101
3 Ternary 112201
4 Quaternary 12031
5 Quinary 3042
6 Senary 1501
8 Octal 615
10 Decimal 397
12 Duodecimal 291
16 Hexadecimal 18d
20 Vigesimal jh
36 Base36 b1

Cryptographic Hash Functions

md5 e46de7e1bcaaced9a54f1e9d0d2f800d
sha1 20387dbb740a1024dc09b567e17ab8b8d656ec64
sha256 1d2028ddcd746a7ee87dd0739d7435602b77d4908f96e27ebdad57b09aa27b69
sha512 31debbab50e5b239e12f20d753587c053fbc39d17e10c9caf18705ab3c3ad8e0b7b7957f393cd967cda8424838ed1642c2153a160b9db0720802cdf2b779039d
ripemd-160 79c1fad78625e42049c5c87ca28cd605af51eb6d

397 as geometric shapes

Circle

Radius = n
Diameter 794
Circumference 2494.4245669503
Area 495143.27653963

Sphere

Radius = n
Volume 262095841.04831
Surface area 1980573.1061585
Circumference 2494.4245669503

Square

Length = n
Perimeter 1588
Area 157609
Diagonal 561.44278426212

Cube

Length = n
Surface area 945654
Volume 62570773
Space diagonal 687.62417060484

Equilateral Triangle

Length = n
Perimeter 1191
Area 68246.698932531
Altitude 343.81208530242

Triangular Pyramid

Length = n
Surface area 68246.698932531
Volume 7374036.3153974
Height 187.14759475404