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

20121945 (number)

20121945 is an odd 8-digits composite number following 20121944 and preceding 20121946. In scientific notation, it is written as 2.0121945 × 10^7. The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors. There are 10264320 positive integers (up to 20121945) that are relatively prime to 20121945.

Interesting facts

20121945 has 8 divisors, whose sum is 20401480
The reverse of 20121945 is 54912102
Previous prime number is 109

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6

Name

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

Notation

Scientific notation	2.0121945 × 10^7
Engineering notation	2.0121945 × 10^6

Prime Factorization of 20121945

Prime Factorization 465 × 109 × 397

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20121945	Product of the distinct prime numbers

The prime factorization of 20121945 is 465 × 109 × 397. Since it has a total of 3 prime factors.

Most popular turbo-numbers

10, 9, 3, 1, 262, 153, 8523, 6638, 26582, 99550, 990710, 515916, 5263414, 4495853, 15432882, 88580647, 789109515, 920751176, 7201649898, 7786565784

Basic calculations (n = 20121945)

Multiplication

n×y

n×2	40243890
n×3	60365835
n×4	80487780
n×5	100609725

Division

n÷y

n÷2	10060972.5
n÷3	6707315
n÷3	5030486.25
n÷5	4024389

Exponentiation

n^y

n²	404892670583025
n³	8.1472280483747E+21
n⁴	1.6393807469185E+29
n⁵	3.2987529223554E+36

Nth Root

^y√n

²√n	4485.7491013208
³√n	271.99232695339
⁴√n	66.975735168199
⁵√n	28.889098623603

Divisors of 20121945

1, 109, 397, 465, 43273, 50685, 184605, 20121945

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-20121944	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20121945 can be divided by 8 positive divisors. The sum of these divisors (counting 20121945) is 1, the average is 0.125.

Base conversion 20121945

Base	System	Value
2	Binary	1001100110000100101011001
3	Ternary	1101212022010020
4	Quaternary	1030300211121
5	Quinary	20122400240
6	Senary	1555141053
8	Octal	114604531
10	Decimal	20121945
12	Duodecimal	68a4789
16	Hexadecimal	1330959
20	Vigesimal	65f4h5
36	Base36	bza6x

Cryptographic Hash Functions

md5	e6df17be87f232c6d9e5d822883afb83
sha1	9515aec11f14aeaeb097dd71c6af0086a6ca023f
sha256	4f59c0b0ee168a0a68f0fca15a6d9cf95a28ea9100a352e097f5ec251a478f80
sha512	fc4823fd5a96285a8eada1d8144f965326710fbae52c586c8dc2dc0715c1abae2b2260da2c416015598191d71c13e789b062d5aaaa30035eb454aa2ee970f8d3
ripemd-160	d3bc44153b593d4d24750da6b41f79bd421e78a8

20121945 as geometric shapes

Circle

Radius = n

Diameter	40243890
Circumference	126429909.17588
Area	1.272007839396E+15

Sphere

Radius = n

Volume	3.4127029045193E+22
Surface area	5.0880313575839E+15
Circumference	126429909.17588

Square

Length = n

Perimeter	80487780
Area	404892670583025
Diagonal	28456727.520325

Cube

Length = n

Surface area	2429356023498150
Volume	8.1472280483747E+21
Space diagonal	34852231.087107

Equilateral Triangle

Length = n

Perimeter	60365835
Area	1.7532366926551E+14
Altitude	17426115.543553

Triangular Pyramid

Length = n

Surface area	1.7532366926551E+14
Volume	9.6016003347984E+20
Height	9485575.8401085