145643721 (number)

145643721 is an odd 9-digits composite number following 145643720 and preceding 145643722. In scientific notation, it is written as 1.45643721 × 10^8. The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors. There are 91869120 positive integers (up to 145643721) that are relatively prime to 145643721.

Interesting facts

Basic properties

Name

Name one hundred forty-five million six hundred forty-three thousand seven hundred twenty-one

Notation

Scientific notation 1.45643721 × 10^8
Engineering notation 1.45643721 × 10^6

Prime Factorization of 145643721

Prime Factorization 3 × 19 × 1373 × 1861

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 145643721
Product of the distinct prime numbers

The prime factorization of 145643721 is 3 × 19 × 1373 × 1861. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 6, 34, 13, 495, 113, 1444, 2630, 67096, 25852, 461694, 999952, 3275533, 9175097, 18889561, 90912103, 58638574, 614984440, 4374024419, 7364711992

Basic calculations (n = 145643721)

Multiplication

n×y
n×2 291287442
n×3 436931163
n×4 582574884
n×5 728218605

Division

n÷y
n÷2 72821860.5
n÷3 48547907
n÷3 36410930.25
n÷5 29128744.2

Exponentiation

ny
n2 21212093466725841
n3 3.0894082226937E+24
n4 4.4995290924111E+32
n5 6.5532815976651E+40

Nth Root

y√n
2√n 12068.294038513
3√n 526.13507521003
4√n 109.85578746025
5√n 42.919865587065

Divisors of 145643721

1, 3, 19, 57, 1373, 1861, 4119, 5583, 26087, 35359, 78261, 106077, 2555153, 7665459, 48547907, 145643721

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 -145643720
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 145643721 can be divided by 16 positive divisors. The sum of these divisors (counting 145643721) is 1, the average is 0.0625.

Base conversion 145643721

Base System Value
2 Binary 1000101011100101100011001001
3 Ternary 101011001110121220
4 Quaternary 20223211203021
5 Quinary 244241044341
6 Senary 22241352253
8 Octal 1053454311
10 Decimal 145643721
12 Duodecimal 40938689
16 Hexadecimal 8ae58c9
20 Vigesimal 25a5961
36 Base36 2epnex

Cryptographic Hash Functions

md5 306808425eebe7e48d31b32a72ea88bc
sha1 74e69ae99003056bd3ede1bcb5ae0535e57d4df9
sha256 377eff3dc0bf7898bbc076f5309694dd01e6ff972089ece0de3e09e2a8643716
sha512 8644ea4b5494bee606d43edbfca407e33addef3709ef157c15e01049d38dc598f34fdcd780e99f3174d618982725ce56a734f863ddf32ac64a0efd6f6fd66b12
ripemd-160 123799c83f8ed51d15ca0b8d540b32b2b9c91b65

145643721 as geometric shapes

Circle

Radius = n
Diameter 291287442
Circumference 915106487.87016
Area 6.6639757002326E+16

Sphere

Radius = n
Volume 1.2940882901806E+25
Surface area 2.665590280093E+17
Circumference 915106487.87016

Square

Length = n
Perimeter 582574884
Area 21212093466725841
Diagonal 205971325.51268

Cube

Length = n
Surface area 127272560800355046
Volume 3.0894082226937E+24
Space diagonal 252262324.57539

Equilateral Triangle

Length = n
Perimeter 436931163
Area 9.1851059048172E+15
Altitude 126131162.28769

Triangular Pyramid

Length = n
Surface area 9.1851059048172E+15
Volume 3.640902506867E+23
Height 68657108.504228