381808 (number)

381808 is an even 6-digits composite number following 381807 and preceding 381809. In scientific notation, it is written as 3.81808 × 10^5. The sum of its digits is 28. It has a total of 7 prime factors and 30 positive divisors. There are 163296 positive integers (up to 381808) that are relatively prime to 381808.

Interesting facts

Basic properties

Name

Name three hundred eighty-one thousand eight hundred eight

Notation

Scientific notation 3.81808 × 10^5
Engineering notation 3.81808 × 10^3

Prime Factorization of 381808

Prime Factorization 2 × 2 × 2 × 2 × 7 × 7 × 487

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 6818
Product of the distinct prime numbers

The prime factorization of 381808 is 2 × 2 × 2 × 2 × 7 × 7 × 487. Since it has a total of 7 prime factors.

Most popular turbo-numbers

Basic calculations (n = 381808)

Multiplication

n×y
n×2 763616
n×3 1145424
n×4 1527232
n×5 1909040

Division

n÷y
n÷2 190904
n÷3 127269.33333333
n÷3 95452
n÷5 76361.6

Exponentiation

ny
n2 145777348864
n3 55658958015066112
n4 2.1251035441816E+22
n5 8.113815339969E+27

Nth Root

y√n
2√n 617.90614173999
3√n 72.546256648191
4√n 24.857717951171
5√n 13.072811673116

Divisors of 381808

30 divisors

τ Total Divisors 30
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -381807
Sum of the proper positive divisors of n
A Arithmetic Mean 0.033333333333333
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 30
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 381808 can be divided by 30 positive divisors. The sum of these divisors (counting 381808) is 1, the average is 0.033333333333333.

Base conversion 381808

Base System Value
2 Binary 1011101001101110000
3 Ternary 201101202001
4 Quaternary 1131031300
5 Quinary 44204213
6 Senary 12103344
8 Octal 1351560
10 Decimal 381808
12 Duodecimal 164b54
16 Hexadecimal 5d370
20 Vigesimal 27ea8
36 Base36 86ls

Cryptographic Hash Functions

md5 b019afcf9066b5287b696122f00c87ca
sha1 03047866aefc037284a518da66abb07cb408ceaf
sha256 7563f33d68ee341f06e1e2fde0e3fdc945c52031fbcf3c198ac6666760bb45eb
sha512 70bfa194ec0eb48fc161cd252da9b514364bd376cc34b32466fb702b2c9f5be52b1155942053d2c8fa5dcbeb5c9854c6ce1a3c6f269abb8aa29fec66459682e7
ripemd-160 bfc20393f3fecba72fbc9e2f556ed1313d5734c5

381808 as geometric shapes

Circle

Radius = n
Diameter 763616
Circumference 2398970.4157636
Area 457973048250.94

Sphere

Radius = n
Volume 2.3314369814213E+17
Surface area 1831892193003.8
Circumference 2398970.4157636

Square

Length = n
Perimeter 1527232
Area 145777348864
Diagonal 539958.05182255

Cube

Length = n
Surface area 874664093184
Volume 55658958015066112
Space diagonal 661310.85473626

Equilateral Triangle

Length = n
Perimeter 1145424
Area 63123443706.285
Altitude 330655.42736813

Triangular Pyramid

Length = n
Surface area 63123443706.285
Volume 6.5594711077051E+15
Height 179986.01727418