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

16451981 (number)

16451981 is an odd 8-digits composite number following 16451980 and preceding 16451982. In scientific notation, it is written as 1.6451981 × 10^7. The sum of its digits is 35. It has a total of 4 prime factors and 12 positive divisors. There are 13016016 positive integers (up to 16451981) that are relatively prime to 16451981.

Interesting facts

16451981 has 12 divisors, whose sum is 20361312
The reverse of 16451981 is 18915461
Previous prime number is 13

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8

Name

Name	sixteen million four hundred fifty-one thousand nine hundred eighty-one

Notation

Scientific notation	1.6451981 × 10^7
Engineering notation	1.6451981 × 10^6

Prime Factorization of 16451981

Prime Factorization 7 × 13 × 13 × 13907

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	1265537	Product of the distinct prime numbers

The prime factorization of 16451981 is 7 × 13 × 13 × 13907. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 9, 47, 34, 75, 631, 349, 8262, 5259, 877, 149700, 326643, 6439055, 8419251, 46279238, 56380870, 328056706, 317467594, 7546012527, 636042293

Basic calculations (n = 16451981)

Multiplication

n×y

n×2	32903962
n×3	49355943
n×4	65807924
n×5	82259905

Division

n÷y

n÷2	8225990.5
n÷3	5483993.6666667
n÷3	4112995.25
n÷5	3290396.2

Exponentiation

n^y

n²	270667678824361
n³	4.4530195093325E+21
n⁴	7.3260992360167E+28
n⁵	1.2052884543506E+36

Nth Root

^y√n

²√n	4056.1041653291
³√n	254.33496324287
⁴√n	63.68755110168
⁵√n	27.748763778883

Divisors of 16451981

1, 7, 13, 91, 169, 1183, 13907, 97349, 180791, 1265537, 2350283, 16451981

12 divisors

τ	Total Divisors	12	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-16451980	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.083333333333333	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	12	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 16451981 can be divided by 12 positive divisors. The sum of these divisors (counting 16451981) is 1, the average is 0.083333333333333.

Base conversion 16451981

Base	System	Value
2	Binary	111110110000100110001101
3	Ternary	1010221211212122
4	Quaternary	332300212031
5	Quinary	13202430411
6	Senary	1344342325
8	Octal	76604615
10	Decimal	16451981
12	Duodecimal	56149a5
16	Hexadecimal	fb098d
20	Vigesimal	52g9j1
36	Base36	9smfh

Cryptographic Hash Functions

md5	416e4d2a65cd1d6bbf151f8cc2e03ee9
sha1	aa255d979214cb10076f7ecc76fe8a9b2499d52b
sha256	669d4ebd532dc0e6797a1a119fdd88d040843744afa155313e4986e8cd11ee17
sha512	36dc9d71d2307c1de8f9bf8ce41efc1331d433d091938255a9ac7718f062431770c6ed2625df745136d45b987690b412d7e86ad8f7b3b44f6f8deacab5becf40
ripemd-160	4de078815f867336d9fdb57289576f5dba3c2a15

16451981 as geometric shapes

Circle

Radius = n

Diameter	32903962
Circumference	103370845.2932
Area	8.5032759135881E+14

Sphere

Radius = n

Volume	1.8652764502415E+22
Surface area	3.4013103654353E+15
Circumference	103370845.2932

Square

Length = n

Perimeter	65807924
Area	270667678824361
Diagonal	23266614.658104

Cube

Length = n

Surface area	1624006072946166
Volume	4.4530195093325E+21
Space diagonal	28495666.977158

Equilateral Triangle

Length = n

Perimeter	49355943
Area	1.1720254292263E+14
Altitude	14247833.488579

Triangular Pyramid

Length = n

Surface area	1.1720254292263E+14
Volume	5.247933819675E+20
Height	7755538.2193682