387942721 (number)

387942721 is an odd 9-digits prime number following 387942720 and preceding 387942722. In scientific notation, it is written as 3.87942721 × 10^8. The sum of its digits is 43. It has a total of 1 prime factors and 2 positive divisors. There are 387942720 positive integers (up to 387942721) that are relatively prime to 387942721.

Interesting facts

Basic properties

Name

Name three hundred eighty-seven million nine hundred forty-two thousand seven hundred twenty-one

Notation

Scientific notation 3.87942721 × 10^8
Engineering notation 3.87942721 × 10^6

Prime Factorization of 387942721

Prime Factorization 387942721

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 387942721
Product of the distinct prime numbers

The prime factorization of 387942721 is 387942721. Since it has a total of 1 prime factors.

Most popular turbo-numbers

4, 2, 23, 50, 664, 401, 8696, 8059, 84334, 7862, 194808, 793167, 3163689, 7399319, 86137340, 90990764, 703056709, 763675767, 8740221426, 5097428503

Basic calculations (n = 387942721)

Multiplication

n×y
n×2 775885442
n×3 1163828163
n×4 1551770884
n×5 1939713605

Division

n÷y
n÷2 193971360.5
n÷3 129314240.33333
n÷3 96985680.25
n÷5 77588544.2

Exponentiation

ny
n2 150499554776883841
n3 5.8385206789433E+25
n4 2.265011598804E+34
n5 8.7869476273659E+42

Nth Root

y√n
2√n 19696.261599603
3√n 729.32741014473
4√n 140.34337034432
5√n 52.209979359185

Divisors of 387942721

1, 387942721

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 387942722
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 193971361
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 19696.261624989
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999999948446
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 387942721 can be divided by 2 positive divisors. The sum of these divisors (counting 387942721) is 387942722, the average is 193971361.

Base conversion 387942721

Base System Value
2 Binary 10111000111111000100101000001
3 Ternary 1000000222112100221
4 Quaternary 113013320211001
5 Quinary 1243303131341
6 Senary 102254543041
8 Octal 2707704501
10 Decimal 387942721
12 Duodecimal a9b07a81
16 Hexadecimal 171f8941
20 Vigesimal 614cgg1
36 Base36 6eyyip

Cryptographic Hash Functions

md5 e98c6252e19fd670c89ea0b18ad91c04
sha1 a129375410e75f2c45eaf0ee8128f56e93807d14
sha256 aa6d1ef197e571a6e1db293088dd22415f1648ec6ac5889bf7e369c15a50b847
sha512 72a214f172c79a1d321dcec90803316a217cb8423a16bd3a7e2b70866c460bf45c7f0ab4fcbf42e2733d35885da7a4ff22a6d37b8c816b3f2f3210de2b5a85a3
ripemd-160 7baaa6b136681346e805cd8a552a869e18fa4ba5

387942721 as geometric shapes

Circle

Radius = n
Diameter 775885442
Circumference 2437516004.6145
Area 4.7280829565559E+17

Sphere

Radius = n
Volume 2.44563382304E+26
Surface area 1.8912331826224E+18
Circumference 2437516004.6145

Square

Length = n
Perimeter 1551770884
Area 150499554776883841
Diagonal 548633857.46212

Cube

Length = n
Surface area 902997328661303046
Volume 5.8385206789433E+25
Space diagonal 671936503.19852

Equilateral Triangle

Length = n
Perimeter 1163828163
Area 6.5168218847515E+16
Altitude 335968251.59926

Triangular Pyramid

Length = n
Surface area 6.5168218847515E+16
Volume 6.8807626069645E+24
Height 182877952.48737