388889281 (number)

388889281 is an odd 9-digits composite number following 388889280 and preceding 388889282. In scientific notation, it is written as 3.88889281 × 10^8. The sum of its digits is 55. It has a total of 2 prime factors and 4 positive divisors. There are 353535600 positive integers (up to 388889281) that are relatively prime to 388889281.

Interesting facts

Basic properties

Name

Name three hundred eighty-eight million eight hundred eighty-nine thousand two hundred eighty-one

Notation

Scientific notation 3.88889281 × 10^8
Engineering notation 3.88889281 × 10^6

Prime Factorization of 388889281

Prime Factorization 121 × 3213961

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 388889281
Product of the distinct prime numbers

The prime factorization of 388889281 is 121 × 3213961. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 388889281)

Multiplication

n×y
n×2 777778562
n×3 1166667843
n×4 1555557124
n×5 1944446405

Division

n÷y
n÷2 194444640.5
n÷3 129629760.33333
n÷3 97222320.25
n÷5 77777856.2

Exponentiation

ny
n2 151234872876696961
n3 5.8813620975145E+25
n4 2.2871986774031E+34
n5 8.8946704915943E+42

Nth Root

y√n
2√n 19720.275885494
3√n 729.92010197049
4√n 140.42889975178
5√n 52.235432454764

Divisors of 388889281

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -388889280
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 388889281 can be divided by 4 positive divisors. The sum of these divisors (counting 388889281) is 1, the average is 0.25.

Base conversion 388889281

Base System Value
2 Binary 10111001011011111101011000001
3 Ternary 1000002202121210201
4 Quaternary 113023133223001
5 Quinary 1244023424111
6 Senary 102331125201
8 Octal 2713375301
10 Decimal 388889281
12 Duodecimal aa2a3801
16 Hexadecimal 172dfac1
20 Vigesimal 61ab341
36 Base36 6fj8w1

Cryptographic Hash Functions

md5 512a9f50f2756581295100a312bf16e6
sha1 77a22a92fdf8795ecfcacf74dcebae0a10e369ba
sha256 59c21fd52ac593afd9ab9734838ed450e83bcdd76dbbfd17df7d5e8a9f5baccc
sha512 ff21dfec7e0687d6367314d728454ccdf20f6b1540efba80b794b694730a3813d03417dafa05a0b1a409266bdbb8c5fe6ac19327f89453761cf8f39cc5b67c82
ripemd-160 05236d63e61d5a0fc856eec65cb5baf02c16967d

388889281 as geometric shapes

Circle

Radius = n
Diameter 777778562
Circumference 2443463416.4988
Area 4.7511836559602E+17

Sphere

Radius = n
Volume 2.4635791944871E+26
Surface area 1.9004734623841E+18
Circumference 2443463416.4988

Square

Length = n
Perimeter 1555557124
Area 151234872876696961
Diagonal 549972495.45172

Cube

Length = n
Surface area 907409237260181766
Volume 5.8813620975145E+25
Space diagonal 673575993.21093

Equilateral Triangle

Length = n
Perimeter 1166667843
Area 6.5486620924665E+16
Altitude 336787996.60546

Triangular Pyramid

Length = n
Surface area 6.5486620924665E+16
Volume 6.9312517029434E+24
Height 183324165.15057