20145391 (number)

20145391 is an odd 8-digits composite number following 20145390 and preceding 20145392. In scientific notation, it is written as 2.0145391 × 10^7. The sum of its digits is 25. It has a total of 4 prime factors and 16 positive divisors. There are 15851520 positive integers (up to 20145391) that are relatively prime to 20145391.

Interesting facts

Basic properties

Name

Name twenty million one hundred forty-five thousand three hundred ninety-one

Notation

Scientific notation 2.0145391 × 10^7
Engineering notation 2.0145391 × 10^6

Prime Factorization of 20145391

Prime Factorization 7 × 17 × 41 × 4129

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20145391
Product of the distinct prime numbers

The prime factorization of 20145391 is 7 × 17 × 41 × 4129. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 4, 89, 26, 846, 954, 8557, 4274, 51754, 8883, 265839, 922630, 6515188, 9376259, 16123470, 6183231, 304169961, 248159677, 7805871968, 7542723467

Basic calculations (n = 20145391)

Multiplication

n×y
n×2 40290782
n×3 60436173
n×4 80581564
n×5 100726955

Division

n÷y
n÷2 10072695.5
n÷3 6715130.3333333
n÷3 5036347.75
n÷5 4029078.2

Exponentiation

ny
n2 405836778542881
n3 8.1757405859267E+21
n4 1.6470349081806E+29
n5 3.3180162215948E+36

Nth Root

y√n
2√n 4488.3617278468
3√n 272.09792736182
4√n 66.995236605648
5√n 28.895827777632

Divisors of 20145391

1, 7, 17, 41, 119, 287, 697, 4129, 4879, 28903, 70193, 169289, 491351, 1185023, 2877913, 20145391

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 -20145390
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 20145391 can be divided by 16 positive divisors. The sum of these divisors (counting 20145391) is 1, the average is 0.0625.

Base conversion 20145391

Base System Value
2 Binary 1001100110110010011101111
3 Ternary 1101220111021121
4 Quaternary 1030312103233
5 Quinary 20124123031
6 Senary 1555441411
8 Octal 114662357
10 Decimal 20145391
12 Duodecimal 68b6267
16 Hexadecimal 13364ef
20 Vigesimal 65i39b
36 Base36 bzsa7

Cryptographic Hash Functions

md5 9730dbb39a38f40134006752d4ab56b4
sha1 eaa97baaacadf81c485c1739e30509dd752064f6
sha256 8286fa005cb961780f1833656afb4d2654ba4265d4b548f6619cb72fe72638f8
sha512 956ffac6e275b6fab008034fb13d455d78503f49194da1fd266d52d5bb36b1fddf8bf78caf8ee40d9b5c609a53016443f6c9542eb0e7b8d9bf6e378079af8a46
ripemd-160 e161bf2c70342b1f540c81cd63ed2de3877a9056

20145391 as geometric shapes

Circle

Radius = n
Diameter 40290782
Circumference 126577224.73859
Area 1.2749738420269E+15

Sphere

Radius = n
Volume 3.4246462083205E+22
Surface area 5.0998953681075E+15
Circumference 126577224.73859

Square

Length = n
Perimeter 80581564
Area 405836778542881
Diagonal 28489885.171509

Cube

Length = n
Surface area 2435020671257286
Volume 8.1757405859267E+21
Space diagonal 34892840.750341

Equilateral Triangle

Length = n
Perimeter 60436173
Area 1.7573248000409E+14
Altitude 17446420.37517

Triangular Pyramid

Length = n
Surface area 1.7573248000409E+14
Volume 9.6352026825515E+20
Height 9496628.390503