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

81872013 (number)

81872013 is an odd 8-digits composite number following 81872012 and preceding 81872014. In scientific notation, it is written as 8.1872013 × 10^7. The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors. There are 54071024 positive integers (up to 81872013) that are relatively prime to 81872013.

Interesting facts

81872013 has 8 divisors, whose sum is 110183328
The reverse of 81872013 is 31027818
Previous prime number is 107

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3

Name

Name	eighty-one million eight hundred seventy-two thousand thirteen

Notation

Scientific notation	8.1872013 × 10^7
Engineering notation	8.1872013 × 10^6

Prime Factorization of 81872013

Prime Factorization 3 × 107 × 255053

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81872013	Product of the distinct prime numbers

The prime factorization of 81872013 is 3 × 107 × 255053. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 1, 79, 46, 432, 922, 5853, 5074, 94388, 81373, 956200, 846253, 2775977, 6030406, 43651101, 13185163, 249202684, 728147499, 437978741, 1981435761

Basic calculations (n = 81872013)

Multiplication

n×y

n×2	163744026
n×3	245616039
n×4	327488052
n×5	409360065

Division

n÷y

n÷2	40936006.5
n÷3	27290671
n÷3	20468003.25
n÷5	16374402.6

Exponentiation

n^y

n²	6703026512672169
n³	5.4879027378484E+23
n⁴	4.4930564429586E+31
n⁵	3.6785557550764E+39

Nth Root

^y√n

²√n	9048.315478585
³√n	434.22199951434
⁴√n	95.122633892176
⁵√n	38.249617252898

Divisors of 81872013

1, 3, 107, 321, 255053, 765159, 27290671, 81872013

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	-81872012	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 81872013 can be divided by 8 positive divisors. The sum of these divisors (counting 81872013) is 1, the average is 0.125.

Base conversion 81872013

Base	System	Value
2	Binary	100111000010100010010001101
3	Ternary	12201001112021210
4	Quaternary	10320110102031
5	Quinary	131424401023
6	Senary	12042445033
8	Octal	470242215
10	Decimal	81872013
12	Duodecimal	23503779
16	Hexadecimal	4e1448d
20	Vigesimal	15be00d
36	Base36	1cqsul

Cryptographic Hash Functions

md5	b13eb39638b57f860a348cd9cfa4f144
sha1	d6686da770b3b46a1390d791c4392b93649ab9ae
sha256	2fb3f95b9345e2b1b0fee7c6d9d417f729eb63ee7079e1b86cb5cfc04feca399
sha512	9f40af83baf83a16499ee9c017c09f1f79f98186cb0c0ce20d956b1ff2d794d89114f064086b08ddc432f5166efbc3acf6796a1687ad54bcfd8f0300dd1bc696
ripemd-160	92931c7e305da6a894bf9b465bf60937a8834759

81872013 as geometric shapes

Circle

Radius = n

Diameter	163744026
Circumference	514417029.15082
Area	2.1058178849028E+16

Sphere

Radius = n

Volume	2.298767323312E+24
Surface area	8.4232715396114E+16
Circumference	514417029.15082

Square

Length = n

Perimeter	327488052
Area	6703026512672169
Diagonal	115784511.16339

Cube

Length = n

Surface area	40218159076033014
Volume	5.4879027378484E+23
Space diagonal	141806486.23394

Equilateral Triangle

Length = n

Perimeter	245616039
Area	2.9024956211074E+15
Altitude	70903243.11697

Triangular Pyramid

Length = n

Surface area	2.9024956211074E+15
Volume	6.467555400708E+22
Height	38594837.054462