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

16401981 (number)

16401981 is an odd 8-digits composite number following 16401980 and preceding 16401982. In scientific notation, it is written as 1.6401981 × 10^7. The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors. There are 10934652 positive integers (up to 16401981) that are relatively prime to 16401981.

Interesting facts

16401981 has 4 divisors, whose sum is 21869312
The reverse of 16401981 is 18910461
Previous prime number is 3

Basic properties

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

Name

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

Notation

Scientific notation	1.6401981 × 10^7
Engineering notation	1.6401981 × 10^6

Prime Factorization of 16401981

Prime Factorization 3 × 5467327

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	16401981	Product of the distinct prime numbers

The prime factorization of 16401981 is 3 × 5467327. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 6, 30, 46, 950, 38, 6976, 3803, 48233, 65896, 814620, 918708, 7018979, 4043968, 2973961, 99951727, 203227240, 412332968, 4063187053, 3929658734

Basic calculations (n = 16401981)

Multiplication

n×y

n×2	32803962
n×3	49205943
n×4	65607924
n×5	82009905

Division

n÷y

n÷2	8200990.5
n÷3	5467327
n÷3	4100495.25
n÷5	3280396.2

Exponentiation

n^y

n²	269024980724361
n³	4.4125426223663E+21
n⁴	7.2374440253743E+28
n⁵	1.1870841939275E+36

Nth Root

^y√n

²√n	4049.9359254191
³√n	254.07704794685
⁴√n	63.639106887346
⁵√n	27.731876719228

Divisors of 16401981

1, 3, 5467327, 16401981

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	-16401980	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 16401981 can be divided by 4 positive divisors. The sum of these divisors (counting 16401981) is 1, the average is 0.25.

Base conversion 16401981

Base	System	Value
2	Binary	111110100100011000111101
3	Ternary	1010212022021210
4	Quaternary	332210120331
5	Quinary	13144330411
6	Senary	1343315033
8	Octal	76443075
10	Decimal	16401981
12	Duodecimal	55aba79
16	Hexadecimal	fa463d
20	Vigesimal	52a4j1
36	Base36	9rjul

Cryptographic Hash Functions

md5	4439a9b8b342f6ed6a5c69c0a32a9bba
sha1	a09136b65d4e7293deff9f88d54fca6b4faf4999
sha256	8b782fae46110d929b091f1add8a8bae935794ac12f164af1d6726405827cf39
sha512	54c61bfe8607267d023b8f99c808395e34c1897e66749a26cf869a886ce5837567fed88b106ec7a309bd38d137d7138a832a83d2da2b150e3acad4d2789aa20a
ripemd-160	e8cdbb87997f241fc02bd47c99491c63db46739c

16401981 as geometric shapes

Circle

Radius = n

Diameter	32803962
Circumference	103056686.02784
Area	8.4516690307579E+14

Sphere

Radius = n

Volume	1.8483215314771E+22
Surface area	3.3806676123032E+15
Circumference	103056686.02784

Square

Length = n

Perimeter	65607924
Area	269024980724361
Diagonal	23195903.979986

Cube

Length = n

Surface area	1614149884346166
Volume	4.4125426223663E+21
Space diagonal	28409064.436779

Equilateral Triangle

Length = n

Perimeter	49205943
Area	1.1649123377996E+14
Altitude	14204532.21839

Triangular Pyramid

Length = n

Surface area	1.1649123377996E+14
Volume	5.2002313509165E+20
Height	7731967.9933286