Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

20121645 (number)

20121645 is an odd 8-digits composite number following 20121644 and preceding 20121646. In scientific notation, it is written as 2.0121645 × 10^7. The sum of its digits is 21. It has a total of 2 prime factors and 4 positive divisors. There are 10731536 positive integers (up to 20121645) that are relatively prime to 20121645.

Interesting facts

20121645 has 4 divisors, whose sum is 21463104
The reverse of 20121645 is 54612102
Previous prime number is 15

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3

Name

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

Notation

Scientific notation	2.0121645 × 10^7
Engineering notation	2.0121645 × 10^6

Prime Factorization of 20121645

Prime Factorization 15 × 1341443

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20121645	Product of the distinct prime numbers

The prime factorization of 20121645 is 15 × 1341443. Since it has a total of 2 prime factors.

Most popular turbo-numbers

2, 9, 7, 1, 991, 559, 4942, 4743, 77145, 22007, 568291, 548369, 5511567, 3688998, 25857317, 48846324, 828479312, 871178707, 1921842825, 7938553839

Basic calculations (n = 20121645)

Multiplication

n×y

n×2	40243290
n×3	60364935
n×4	80486580
n×5	100608225

Division

n÷y

n÷2	10060822.5
n÷3	6707215
n÷3	5030411.25
n÷5	4024329

Exponentiation

n^y

n²	404880597506025
n³	8.1468636504041E+21
n⁴	1.6392829823684E+29
n⁵	3.2985070225757E+36

Nth Root

^y√n

²√n	4485.7156619652
³√n	271.99097522681
⁴√n	66.975485529895
⁵√n	28.889012481023

Divisors of 20121645

1, 15, 1341443, 20121645

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	-20121644	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 20121645 can be divided by 4 positive divisors. The sum of these divisors (counting 20121645) is 1, the average is 0.25.

Base conversion 20121645

Base	System	Value
2	Binary	1001100110000100000101101
3	Ternary	1101212021201010
4	Quaternary	1030300200231
5	Quinary	20122343040
6	Senary	1555135433
8	Octal	114604055
10	Decimal	20121645
12	Duodecimal	68a4579
16	Hexadecimal	133082d
20	Vigesimal	65f425
36	Base36	bz9yl

Cryptographic Hash Functions

md5	c7f17ab46724e121e9baef229ec83536
sha1	3e765ac0fcaf0dade9980ffc361d14e648963366
sha256	e76defaf9d9c4c673bf2013d1f3237fdf8fef7cf2b98cda699b1eae537251876
sha512	04aec8ad247532ab78edc786a6c7e022413708493e0579c398c226759f13b28077b1e4640e49472f6c65c96c1ffa750bea4c34132d2929f1b3fe1f86bee1ba36
ripemd-160	fd3631a468bfa266c653ba98f0a99504cde22431

20121645 as geometric shapes

Circle

Radius = n

Diameter	40243290
Circumference	126428024.22028
Area	1.271969910706E+15

Sphere

Radius = n

Volume	3.4125502658543E+22
Surface area	5.0878796428239E+15
Circumference	126428024.22028

Square

Length = n

Perimeter	80486580
Area	404880597506025
Diagonal	28456303.256257

Cube

Length = n

Surface area	2429283585036150
Volume	8.1468636504041E+21
Space diagonal	34851711.471864

Equilateral Triangle

Length = n

Perimeter	60364935
Area	1.7531844146982E+14
Altitude	17425855.735932

Triangular Pyramid

Length = n

Surface area	1.7531844146982E+14
Volume	9.6011708876716E+20
Height	9485434.4187523