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

20187978 (number)

20187978 is an even 8-digits composite number following 20187977 and preceding 20187979. In scientific notation, it is written as 2.0187978 × 10^7. The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors. There are 6691376 positive integers (up to 20187978) that are relatively prime to 20187978.

Interesting facts

20187978 has 16 divisors, whose sum is 40603680
The reverse of 20187978 is 87978102
Previous prime number is 179

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 42
Digital Root 6

Name

Name	twenty million one hundred eighty-seven thousand nine hundred seventy-eight

Notation

Scientific notation	2.0187978 × 10^7
Engineering notation	2.0187978 × 10^6

Prime Factorization of 20187978

Prime Factorization 2 × 3 × 179 × 18797

Composite number

ω	Distinct Factors	4	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	20187978	Product of the distinct prime numbers

The prime factorization of 20187978 is 2 × 3 × 179 × 18797. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 7, 57, 8, 713, 611, 3148, 5266, 50104, 39706, 604165, 853226, 2976918, 8527241, 20140889, 81638328, 883498102, 59225412, 5889357541, 146571362

Basic calculations (n = 20187978)

Multiplication

n×y

n×2	40375956
n×3	60563934
n×4	80751912
n×5	100939890

Division

n÷y

n÷2	10093989
n÷3	6729326
n÷3	5046994.5
n÷5	4037595.6

Exponentiation

n^y

n²	407554455728484
n³	8.2277003860486E+21
n⁴	1.6610063438414E+29
n⁵	3.3532359527331E+36

Nth Root

^y√n

²√n	4493.1033818509
³√n	272.28952914502
⁴√n	67.030615257887
⁵√n	28.908034513754

Divisors of 20187978

1, 2, 3, 6, 179, 358, 537, 1074, 18797, 37594, 56391, 112782, 3364663, 6729326, 10093989, 20187978

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	-20187977	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 20187978 can be divided by 16 positive divisors. The sum of these divisors (counting 20187978) is 1, the average is 0.0625.

Base conversion 20187978

Base	System	Value
2	Binary	1001101000000101101001010
3	Ternary	1101222122200220
4	Quaternary	1031000231022
5	Quinary	20132003403
6	Senary	2000410510
8	Octal	115005512
10	Decimal	20187978
12	Duodecimal	6916a36
16	Hexadecimal	1340b4a
20	Vigesimal	6639ii
36	Base36	c0p56

Cryptographic Hash Functions

md5	e378c7bb2e02ddcf72b95da733c549a6
sha1	4f46ae5230a364ed58c9725fedaf0b73c15cad28
sha256	9f14f0a242f87f117da7558e50c6cd1ecc1a36549be2a9048f8ff881b90be05e
sha512	478713290517251ba807e004d30676edc601ad274f5910850d7a6b7c4ab73e289953e5964a579550212057c4ce9194dd4b076efd22f53586ab3a2bef74e6736b
ripemd-160	3eb4857c23ca13907b2b26feaddb189bed038129

20187978 as geometric shapes

Circle

Radius = n

Diameter	40375956
Circumference	126844806.75126
Area	1.2803700840544E+15

Sphere

Radius = n

Volume	3.4464110784998E+22
Surface area	5.1214803362176E+15
Circumference	126844806.75126

Square

Length = n

Perimeter	80751912
Area	407554455728484
Diagonal	28550112.28449

Cube

Length = n

Surface area	2445326734370904
Volume	8.2277003860486E+21
Space diagonal	34966603.598083

Equilateral Triangle

Length = n

Perimeter	60563934
Area	1.764762560432E+14
Altitude	17483301.799041

Triangular Pyramid

Length = n

Surface area	1.764762560432E+14
Volume	9.6964378942436E+20
Height	9516704.0948299