397642721 (number)

397642721 is an odd 9-digits composite number following 397642720 and preceding 397642722. In scientific notation, it is written as 3.97642721 × 10^8. The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors. There are 338383728 positive integers (up to 397642721) that are relatively prime to 397642721.

Interesting facts

Basic properties

Name

Name three hundred ninety-seven million six hundred forty-two thousand seven hundred twenty-one

Notation

Scientific notation 3.97642721 × 10^8
Engineering notation 3.97642721 × 10^6

Prime Factorization of 397642721

Prime Factorization 7 × 139 × 408677

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 397642721
Product of the distinct prime numbers

The prime factorization of 397642721 is 7 × 139 × 408677. Since it has a total of 3 prime factors.

Most popular turbo-numbers

8, 5, 5, 86, 951, 608, 398, 4756, 39495, 78639, 385683, 881770, 9841753, 2430199, 40378455, 75560369, 617219918, 311602226, 1848301140, 6581515414

Basic calculations (n = 397642721)

Multiplication

n×y
n×2 795285442
n×3 1192928163
n×4 1590570884
n×5 1988213605

Division

n÷y
n÷2 198821360.5
n÷3 132547573.66667
n÷3 99410680.25
n÷5 79528544.2

Exponentiation

ny
n2 158119733564283841
n3 6.2875161098297E+25
n4 2.500185014244E+34
n5 9.9418037206741E+42

Nth Root

y√n
2√n 19940.980943775
3√n 735.35606546605
4√n 141.21253819606
5√n 52.468495031548

Divisors of 397642721

1, 7, 139, 973, 408677, 2860739, 56806103, 397642721

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 -397642720
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 397642721 can be divided by 8 positive divisors. The sum of these divisors (counting 397642721) is 1, the average is 0.125.

Base conversion 397642721

Base System Value
2 Binary 10111101100111000101111100001
3 Ternary 1000201020100021012
4 Quaternary 113230320233201
5 Quinary 1303244031341
6 Senary 103242510305
8 Octal 2754705741
10 Decimal 397642721
12 Duodecimal b1205395
16 Hexadecimal 17b38be1
20 Vigesimal 64556g1
36 Base36 6kqv35

Cryptographic Hash Functions

md5 c3d7ee4683246a972489ace5d6d577d0
sha1 68676c445a07939d2a32af5886a092b8929b3d21
sha256 e9a805e24eceeadb51eedd589a1a358ce85a0b3069b3f4ed8fad03b6c5fab461
sha512 00f12cdcd3d2651fe9a5207194965fdec702be451c00f4771ae35312a9456ed874a343dadb079e325bafc71f75752da540af756e6b7403b21b459dd71aff9530
ripemd-160 bb7ef32337c664af728d7c381c238f9ef45904db

397642721 as geometric shapes

Circle

Radius = n
Diameter 795285442
Circumference 2498462902.0941
Area 4.9674779335313E+17

Sphere

Radius = n
Volume 2.6337085893291E+26
Surface area 1.9869911734125E+18
Circumference 2498462902.0941

Square

Length = n
Perimeter 1590570884
Area 158119733564283841
Diagonal 562351729.01714

Cube

Length = n
Surface area 948718401385703046
Volume 6.2875161098297E+25
Space diagonal 688737396.03194

Equilateral Triangle

Length = n
Perimeter 1192928163
Area 6.8467853053148E+16
Altitude 344368698.01597

Triangular Pyramid

Length = n
Surface area 6.8467853053148E+16
Volume 7.4099087968004E+24
Height 187450576.33905