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

15957981 (number)

15957981 is an odd 8-digits composite number following 15957980 and preceding 15957982. In scientific notation, it is written as 1.5957981 × 10^7. The sum of its digits is 45. It has a total of 3 prime factors and 8 positive divisors. There are 9820224 positive integers (up to 15957981) that are relatively prime to 15957981.

Interesting facts

15957981 has 8 divisors, whose sum is 19095160
The reverse of 15957981 is 18975951
Previous prime number is 13

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9

Name

Name	fifteen million nine hundred fifty-seven thousand nine hundred eighty-one

Notation

Scientific notation	1.5957981 × 10^7
Engineering notation	1.5957981 × 10^6

Prime Factorization of 15957981

Prime Factorization 9 × 13 × 136393

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	15957981	Product of the distinct prime numbers

The prime factorization of 15957981 is 9 × 13 × 136393. Since it has a total of 3 prime factors.

Most popular turbo-numbers

9, 8, 43, 65, 408, 422, 733, 9145, 37505, 44830, 3351, 853343, 4812134, 3273266, 78810830, 92757021, 367474028, 110863941, 669898527, 876472460

Basic calculations (n = 15957981)

Multiplication

n×y

n×2	31915962
n×3	47873943
n×4	63831924
n×5	79789905

Division

n÷y

n÷2	7978990.5
n÷3	5319327
n÷3	3989495.25
n÷5	3191596.2

Exponentiation

n^y

n²	254657157596361
n³	4.0638140824367E+21
n⁴	6.4850267915058E+28
n⁵	1.0348793432334E+36

Nth Root

^y√n

²√n	3994.744172034
³√n	251.76343066927
⁴√n	63.203988576941
⁵√n	27.580084264743

Divisors of 15957981

1, 9, 13, 117, 136393, 1227537, 1773109, 15957981

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	-15957980	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 15957981 can be divided by 8 positive divisors. The sum of these divisors (counting 15957981) is 1, the average is 0.125.

Base conversion 15957981

Base	System	Value
2	Binary	111100110111111111011101
3	Ternary	1010000202020100
4	Quaternary	330313333131
5	Quinary	13041123411
6	Senary	1330011313
8	Octal	74677735
10	Decimal	15957981
12	Duodecimal	5416b39
16	Hexadecimal	f37fdd
20	Vigesimal	4jeej1
36	Base36	9i199

Cryptographic Hash Functions

md5	362509d657acd81625fbfeb6911dbe28
sha1	d738507b6b3509c29e6681105c77b6d80079d8f1
sha256	95784d283eae08e4a60a8a1f9a8e4fa87e96e4c4441f954604645b780d345735
sha512	20dcd9205d4017ab7cf537be45e528caebf091bcac70c5b83d01485d0f3cd240e3c908cb895a219496e3446e0d75da4f8429f8cbae3fc49588b259812d1a7f27
ripemd-160	862ac06e0170f0c434d9edbf48604e2175cd893d

15957981 as geometric shapes

Circle

Radius = n

Diameter	31915962
Circumference	100266951.75145
Area	8.0002905548879E+14

Sphere

Radius = n

Volume	1.7022464622584E+22
Surface area	3.2001162219551E+15
Circumference	100266951.75145

Square

Length = n

Perimeter	63831924
Area	254657157596361
Diagonal	22567993.158292

Cube

Length = n

Surface area	1527942945578166
Volume	4.0638140824367E+21
Space diagonal	27640033.878219

Equilateral Triangle

Length = n

Perimeter	47873943
Area	1.1026978386699E+14
Altitude	13820016.939109

Triangular Pyramid

Length = n

Surface area	1.1026978386699E+14
Volume	4.7892508252873E+20
Height	7522664.3860974