381387905 (number)

381387905 is an odd 9-digits composite number following 381387904 and preceding 381387906. In scientific notation, it is written as 3.81387905 × 10^8. The sum of its digits is 44. It has a total of 4 prime factors and 16 positive divisors. There are 297593088 positive integers (up to 381387905) that are relatively prime to 381387905.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 3.81387905 × 10^8
Engineering notation 3.81387905 × 10^6

Prime Factorization of 381387905

Prime Factorization 5 × 83 × 79 × 11633

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 381387905
Product of the distinct prime numbers

The prime factorization of 381387905 is 5 × 83 × 79 × 11633. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 3, 55, 52, 32, 302, 3272, 2718, 93131, 62319, 973086, 31420, 6841642, 2368093, 68674893, 88345552, 326969496, 298613665, 8286252365, 2329138387

Basic calculations (n = 381387905)

Multiplication

n×y
n×2 762775810
n×3 1144163715
n×4 1525551620
n×5 1906939525

Division

n÷y
n÷2 190693952.5
n÷3 127129301.66667
n÷3 95346976.25
n÷5 76277581

Exponentiation

ny
n2 145456734080289025
n3 5.5475439079024E+25
n4 2.1157661489304E+34
n5 8.0692761901048E+42

Nth Root

y√n
2√n 19529.155255668
3√n 725.1963986349
4√n 139.74675400763
5√n 52.032343088565

Divisors of 381387905

1, 5, 79, 83, 395, 415, 6557, 11633, 32785, 58165, 919007, 965539, 4595035, 4827695, 76277581, 381387905

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -381387904
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 381387905 can be divided by 16 positive divisors. The sum of these divisors (counting 381387905) is 1, the average is 0.0625.

Base conversion 381387905

Base System Value
2 Binary 10110101110111000010010000001
3 Ternary 222120122111211222
4 Quaternary 112232320102001
5 Quinary 1240113403110
6 Senary 101502244425
8 Octal 2656702201
10 Decimal 381387905
12 Duodecimal a7886715
16 Hexadecimal 16bb8481
20 Vigesimal 5j3d9f5
36 Base36 6b2gsh

Cryptographic Hash Functions

md5 ea39bce40421073595d61e4775b638e6
sha1 3164cbc9380d976e2d1d74aa0bdc010895e0f7d5
sha256 5d70b458050479ea6051a464ee3c05c5e0f782d52edfd1aa12ccdf81c1330176
sha512 74f2118e922c6ec0e1248af9fdd114c0a10c64b1ffff7fe73c18e98246f5a6ab6d940d2dbc2a9a133ffa1187634ca978ede8b4bfa405878413bfe0363decf8ea
ripemd-160 25a76445ddf2a92cb12b9b26714a6b0b3aee2dc3

381387905 as geometric shapes

Circle

Radius = n
Diameter 762775810
Circumference 2396330881.032
Area 4.569658072018E+17

Sphere

Radius = n
Volume 2.3237497582044E+26
Surface area 1.8278632288072E+18
Circumference 2396330881.032

Square

Length = n
Perimeter 1525551620
Area 145456734080289025
Diagonal 539363947.77606

Cube

Length = n
Surface area 872740404481734150
Volume 5.5475439079024E+25
Space diagonal 660583228.85225

Equilateral Triangle

Length = n
Perimeter 1144163715
Area 6.2984613432524E+16
Altitude 330291614.42613

Triangular Pyramid

Length = n
Surface area 6.2984613432524E+16
Volume 6.5378431936798E+24
Height 179787982.59202