145891 (number)

145891 is an odd 6-digits composite number following 145890 and preceding 145892. In scientific notation, it is written as 1.45891 × 10^5. The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors. There are 141912 positive integers (up to 145891) that are relatively prime to 145891.

Interesting facts

Basic properties

Name

Name one hundred forty-five thousand eight hundred ninety-one

Notation

Scientific notation 1.45891 × 10^5
Engineering notation 1.45891 × 10^3

Prime Factorization of 145891

Prime Factorization 37 × 3943

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 145891
Product of the distinct prime numbers

The prime factorization of 145891 is 37 × 3943. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 145891)

Multiplication

n×y
n×2 291782
n×3 437673
n×4 583564
n×5 729455

Division

n÷y
n÷2 72945.5
n÷3 48630.333333333
n÷3 36472.75
n÷5 29178.2

Exponentiation

ny
n2 21284183881
n3 3105170870582971
n4 4.5301648348022E+20
n5 6.6091027791413E+25

Nth Root

y√n
2√n 381.95680384043
3√n 52.64326703577
4√n 19.543715200556
5√n 10.78464118323

Divisors of 145891

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 -145890
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 145891 can be divided by 4 positive divisors. The sum of these divisors (counting 145891) is 1, the average is 0.25.

Base conversion 145891

Base System Value
2 Binary 100011100111100011
3 Ternary 21102010101
4 Quaternary 203213203
5 Quinary 14132031
6 Senary 3043231
8 Octal 434743
10 Decimal 145891
12 Duodecimal 70517
16 Hexadecimal 239e3
20 Vigesimal i4eb
36 Base36 34kj

Cryptographic Hash Functions

md5 752c5ca8ef2657345056c5e31fac7837
sha1 fa913c4faa4a3ca953b3aa5faa6419b7c1c63aac
sha256 8428bc1fb6f5a9d63abd1e8c9072c35a92f6eb8a416a4982a5dd05abb03e340c
sha512 724ec9a39a56fe9cae5b5523a7dfdac6d7cb58d7102f5d601e49cc29813702d668f98d140b3fdfcd74128a16283ea9db4813d7e815a5a66deafb4e8372d61892
ripemd-160 454e7ecef8e01899be6cfea1945fa53934416e52

145891 as geometric shapes

Circle

Radius = n
Diameter 291782
Circumference 916660.18764974
Area 66866235718.204

Sphere

Radius = n
Volume 1.3006909326886E+16
Surface area 267464942872.82
Circumference 916660.18764974

Square

Length = n
Perimeter 583564
Area 21284183881
Diagonal 206321.03082817

Cube

Length = n
Surface area 127705103286
Volume 3105170870582971
Space diagonal 252690.62436703

Equilateral Triangle

Length = n
Perimeter 437673
Area 9216321969.8826
Altitude 126345.31218352

Triangular Pyramid

Length = n
Surface area 9216321969.8826
Volume 3.6594789655536E+14
Height 68773.676942724