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

20121989 (number)

20121989 is an odd 8-digits prime number following 20121988 and preceding 20121990. In scientific notation, it is written as 2.0121989 × 10^7. The sum of its digits is 32. It has a total of 1 prime factors and 2 positive divisors. There are 20121988 positive integers (up to 20121989) that are relatively prime to 20121989.

Interesting facts

20121989 has 2 divisors, whose sum is 20121990
The reverse of 20121989 is 98912102
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5

Name

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

Notation

Scientific notation	2.0121989 × 10^7
Engineering notation	2.0121989 × 10^6

Prime Factorization of 20121989

Prime Factorization 20121989

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	20121989	Product of the distinct prime numbers

The prime factorization of 20121989 is 20121989. Since it has a total of 1 prime factors.

Most popular turbo-numbers

3, 10, 17, 39, 210, 199, 8300, 4947, 48871, 96754, 595532, 502610, 4841111, 5961344, 54987892, 86471129, 654288067, 692599751, 2128796699, 3047767610

Basic calculations (n = 20121989)

Multiplication

n×y

n×2	40243978
n×3	60365967
n×4	80487956
n×5	100609945

Division

n÷y

n÷2	10060994.5
n÷3	6707329.6666667
n÷3	5030497.25
n÷5	4024397.8

Exponentiation

n^y

n²	404894441316121
n³	8.1472814943241E+21
n⁴	1.6393950860869E+29
n⁵	3.2987889888895E+36

Nth Root

^y√n

²√n	4485.7540057386
³√n	271.99252520549
⁴√n	66.975771781582
⁵√n	28.889111257761

Divisors of 20121989

1, 20121989

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	20121990	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	10060995	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	4485.7541172026	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999999006063	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20121989 can be divided by 2 positive divisors. The sum of these divisors (counting 20121989) is 20121990, the average is 10060995.

Base conversion 20121989

Base	System	Value
2	Binary	1001100110000100110000101
3	Ternary	1101212022011212
4	Quaternary	1030300212011
5	Quinary	20122400424
6	Senary	1555141205
8	Octal	114604605
10	Decimal	20121989
12	Duodecimal	68a4805
16	Hexadecimal	1330985
20	Vigesimal	65f4j9
36	Base36	bza85

Cryptographic Hash Functions

md5	1200addfe20e301049ec29bec4d40331
sha1	0988f268ac3e1f23da74d12e93b2ec2a571f2cc9
sha256	4270ea95a173f113711f566ccac3518b3919b300d0544c820251f3a9c2a0225d
sha512	e3bc74b6e61ea3da0798d58e67bc9f81ee5e20f5b5fc25d0529a96f84841730134fe6806b3f3bcdc9ea601170ef6d9661bf221f0d62daeaa2f49a2102d475000
ripemd-160	346daf2d172a320b74d286e404ab0db448cf561d

20121989 as geometric shapes

Circle

Radius = n

Diameter	40243978
Circumference	126430185.63603
Area	1.2720134023181E+15

Sphere

Radius = n

Volume	3.4127252919062E+22
Surface area	5.0880536092723E+15
Circumference	126430185.63603

Square

Length = n

Perimeter	80487956
Area	404894441316121
Diagonal	28456789.745722

Cube

Length = n

Surface area	2429366647896726
Volume	8.1472814943241E+21
Space diagonal	34852307.297342

Equilateral Triangle

Length = n

Perimeter	60365967
Area	1.7532443601543E+14
Altitude	17426153.648671

Triangular Pyramid

Length = n

Surface area	1.7532443601543E+14
Volume	9.6016633214538E+20
Height	9485596.5819074