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

20121890 (number)

20121890 is an even 8-digits composite number following 20121889 and preceding 20121891. In scientific notation, it is written as 2.0121890 × 10^7. The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors. There are 8048752 positive integers (up to 20121890) that are relatively prime to 20121890.

Interesting facts

20121890 has 8 divisors, whose sum is 36219420
The reverse of 20121890 is 09812102
Previous prime number is 5

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5

Name

Name	twenty million one hundred twenty-one thousand eight hundred ninety

Notation

Scientific notation	2.0121890 × 10^7
Engineering notation	2.0121890 × 10^6

Prime Factorization of 20121890

Prime Factorization 2 × 5 × 2012189

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20121890	Product of the distinct prime numbers

The prime factorization of 20121890 is 2 × 5 × 2012189. Since it has a total of 3 prime factors.

Most popular turbo-numbers

8, 10, 39, 65, 133, 265, 2321, 6039, 47219, 92559, 169445, 162087, 7153736, 4513737, 15302102, 38907627, 467185363, 661831180, 1907207234, 7303701805

Basic calculations (n = 20121890)

Multiplication

n×y

n×2	40243780
n×3	60365670
n×4	80487560
n×5	100609450

Division

n÷y

n÷2	10060945
n÷3	6707296.6666667
n÷3	5030472.5
n÷5	4024378

Exponentiation

n^y

n²	404890457172100
n³	8.1471612412667E+21
n⁴	1.6393628230903E+29
n⁵	3.2987078396313E+36

Nth Root

^y√n

²√n	4485.7429707909
³√n	271.99207913785
⁴√n	66.975689401386
⁵√n	28.889082830873

Divisors of 20121890

1, 2, 5, 10, 2012189, 4024378, 10060945, 20121890

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	-20121889	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 20121890 can be divided by 8 positive divisors. The sum of these divisors (counting 20121890) is 1, the average is 0.125.

Base conversion 20121890

Base	System	Value
2	Binary	1001100110000100100100010
3	Ternary	1101212022001012
4	Quaternary	1030300210202
5	Quinary	20122400030
6	Senary	1555140522
8	Octal	114604442
10	Decimal	20121890
12	Duodecimal	68a4742
16	Hexadecimal	1330922
20	Vigesimal	65f4ea
36	Base36	bza5e

Cryptographic Hash Functions

md5	679fee21a114199801cc68d088dbbd93
sha1	5e71f01de7eda37dd41f3f18de45656976d4cbe4
sha256	ea0103063a080dbdc9ca2ca2749d1e673e615127346c8c7a061d7c725cf59321
sha512	270510c4b55dfed3fd42130d2b67a85ff66a7382bc5efe07aaf12ed1e99cdee958af58ed4f5041d76f1239febd188ba8787076e9f5e3822cc6afe6d6e93f235f
ripemd-160	ca1351a957515fd4cb856c5b95e836cd5222067a

20121890 as geometric shapes

Circle

Radius = n

Diameter	40243780
Circumference	126429563.60068
Area	1.2720008857605E+15

Sphere

Radius = n

Volume	3.4126749204233E+22
Surface area	5.0880035430419E+15
Circumference	126429563.60068

Square

Length = n

Perimeter	80487560
Area	404890457172100
Diagonal	28456649.73858

Cube

Length = n

Surface area	2429342743032600
Volume	8.1471612412667E+21
Space diagonal	34852135.824312

Equilateral Triangle

Length = n

Perimeter	60365670
Area	1.7532271083047E+14
Altitude	17426067.912156

Triangular Pyramid

Length = n

Surface area	1.7532271083047E+14
Volume	9.6015216018665E+20
Height	9485549.9128599