20165981 (number)

20165981 is an odd 8-digits composite number following 20165980 and preceding 20165982. In scientific notation, it is written as 2.0165981 × 10^7. The sum of its digits is 32. It has a total of 5 prime factors and 16 positive divisors. There are 18033840 positive integers (up to 20165981) that are relatively prime to 20165981.

Interesting facts

Basic properties

Name

Name twenty million one hundred sixty-five thousand nine hundred eighty-one

Notation

Scientific notation 2.0165981 × 10^7
Engineering notation 2.0165981 × 10^6

Prime Factorization of 20165981

Prime Factorization 11 × 109 × 11 × 11 × 139

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 166661
Product of the distinct prime numbers

The prime factorization of 20165981 is 11 × 109 × 11 × 11 × 139. Since it has a total of 5 prime factors.

Most popular turbo-numbers

2, 2, 64, 100, 849, 287, 6003, 9475, 20431, 57238, 355272, 826768, 9897423, 1677361, 86068845, 80377453, 799990186, 527324586, 745495039, 1085071888

Basic calculations (n = 20165981)

Multiplication

n×y
n×2 40331962
n×3 60497943
n×4 80663924
n×5 100829905

Division

n÷y
n÷2 10082990.5
n÷3 6721993.6666667
n÷3 5041495.25
n÷5 4033196.2

Exponentiation

ny
n2 406666789692361
n3 8.2008347542671E+21
n4 1.6537787783869E+29
n5 3.3350071423154E+36

Nth Root

y√n
2√n 4490.6548520233
3√n 272.19059684129
4√n 67.012348504013
5√n 28.901732076085

Divisors of 20165981

1, 11, 109, 121, 139, 1199, 1331, 1529, 13189, 15151, 16819, 145079, 166661, 185009, 1833271, 20165981

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 -20165980
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 20165981 can be divided by 16 positive divisors. The sum of these divisors (counting 20165981) is 1, the average is 0.0625.

Base conversion 20165981

Base System Value
2 Binary 1001100111011010101011101
3 Ternary 1101221112112012
4 Quaternary 1030323111131
5 Quinary 20130302411
6 Senary 2000121005
8 Octal 114732535
10 Decimal 20165981
12 Duodecimal 6906165
16 Hexadecimal 133b55d
20 Vigesimal 660ej1
36 Base36 c0865

Cryptographic Hash Functions

md5 d9d1b9b42728456699c98ef0b182d950
sha1 94e13c58ac765f3c45e45ae14d3b1e3e94daaec7
sha256 2318451fd2b4a7a66a1e43af1182686ea485aa62d5960bdc5178779a5c66c2b3
sha512 b75cc22f80b1814ecea0cbd7df6c22d2ff2253a16c604c1dd8d0ee180727a5d55b9da6ef606a36fcfa3782a6c8337958a7f0beba9ad4771518aaa07699baac65
ripemd-160 40d94446dbe9d5a92f1bef83db5b6e8a51c2fca4

20165981 as geometric shapes

Circle

Radius = n
Diameter 40331962
Circumference 126706595.52406
Area 1.2775813989565E+15

Sphere

Radius = n
Volume 3.4351576289746E+22
Surface area 5.1103255958259E+15
Circumference 126706595.52406

Square

Length = n
Perimeter 80663924
Area 406666789692361
Diagonal 28519003.828758

Cube

Length = n
Surface area 2440000738154166
Volume 8.2008347542671E+21
Space diagonal 34928503.676469

Equilateral Triangle

Length = n
Perimeter 60497943
Area 1.7609188537452E+14
Altitude 17464251.838234

Triangular Pyramid

Length = n
Surface area 1.7609188537452E+14
Volume 9.6647764435544E+20
Height 9506334.6095861