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

15663981 (number)

15663981 is an odd 8-digits composite number following 15663980 and preceding 15663982. In scientific notation, it is written as 1.5663981 × 10^7. The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors. There are 10442652 positive integers (up to 15663981) that are relatively prime to 15663981.

Interesting facts

15663981 has 4 divisors, whose sum is 20885312
The reverse of 15663981 is 18936651
Previous prime number is 3

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3

Name

Name	fifteen million six hundred sixty-three thousand nine hundred eighty-one

Notation

Scientific notation	1.5663981 × 10^7
Engineering notation	1.5663981 × 10^6

Prime Factorization of 15663981

Prime Factorization 3 × 5221327

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	15663981	Product of the distinct prime numbers

The prime factorization of 15663981 is 3 × 5221327. Since it has a total of 2 prime factors.

Most popular turbo-numbers

2, 4, 16, 27, 778, 220, 5363, 5788, 87111, 30803, 963395, 178974, 3887620, 3902538, 70641614, 17943569, 304439273, 584941461, 4762286156, 1218153126

Basic calculations (n = 15663981)

Multiplication

n×y

n×2	31327962
n×3	46991943
n×4	62655924
n×5	78319905

Division

n÷y

n÷2	7831990.5
n÷3	5221327
n÷3	3915995.25
n÷5	3132796.2

Exponentiation

n^y

n²	245360300768361
n³	3.8433190893899E+21
n⁴	6.0201677193141E+28
n⁵	9.4299792772149E+35

Nth Root

^y√n

²√n	3957.7747535705
³√n	250.20772601847
⁴√n	62.910847662152
⁵√n	27.477703284653

Divisors of 15663981

1, 3, 5221327, 15663981

4 divisors

τ	Total Divisors	4	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-15663980	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.25	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	4	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 15663981 can be divided by 4 positive divisors. The sum of these divisors (counting 15663981) is 1, the average is 0.25.

Base conversion 15663981

Base	System	Value
2	Binary	111011110000001101101101
3	Ternary	1002110210221110
4	Quaternary	323300031231
5	Quinary	13002221411
6	Senary	1315422233
8	Octal	73601555
10	Decimal	15663981
12	Duodecimal	52b4979
16	Hexadecimal	ef036d
20	Vigesimal	4hhjj1
36	Base36	9bqel

Cryptographic Hash Functions

md5	1d875368d336783d9934e077677522c7
sha1	68ac490d20c50d45e3f911c7540658aa308d3fa7
sha256	e757552813bf1755f4f304382b44253683a6a87a913ef8e20ffccd089eb3e96f
sha512	8b3aa85758b77928c2815b0d6e83d3f673ca2e08be2ffa1671bc2120f7b0c6c0e28acfb5411e67f904cdf053ceb199ef17c637723a854add6f4ce8216a0c7139
ripemd-160	7ab2e3982205050f8090a1b5263214ca72693c0e

15663981 as geometric shapes

Circle

Radius = n

Diameter	31327962
Circumference	98419695.27114
Area	7.7082211837646E+14

Sphere

Radius = n

Volume	1.6098857355505E+22
Surface area	3.0832884735059E+15
Circumference	98419695.27114

Square

Length = n

Perimeter	62655924
Area	245360300768361
Diagonal	22152214.370954

Cube

Length = n

Surface area	1472161804610166
Volume	3.8433190893899E+21
Space diagonal	27130810.940794

Equilateral Triangle

Length = n

Perimeter	46991943
Area	1.062441267728E+14
Altitude	13565405.470397

Triangular Pyramid

Length = n

Surface area	1.062441267728E+14
Volume	4.5293949839522E+20
Height	7384071.4569848