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

28916981 (number)

28916981 is an odd 8-digits prime number following 28916980 and preceding 28916982. In scientific notation, it is written as 2.8916981 × 10^7. The sum of its digits is 44. It has a total of 1 prime factors and 2 positive divisors. There are 28916980 positive integers (up to 28916981) that are relatively prime to 28916981.

Interesting facts

28916981 has 2 divisors, whose sum is 28916982
The reverse of 28916981 is 18961982
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8

Name

Name	twenty-eight million nine hundred sixteen thousand nine hundred eighty-one

Notation

Scientific notation	2.8916981 × 10^7
Engineering notation	2.8916981 × 10^6

Prime Factorization of 28916981

Prime Factorization 28916981

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	28916981	Product of the distinct prime numbers

The prime factorization of 28916981 is 28916981. Since it has a total of 1 prime factors.

Most popular turbo-numbers

4, 1, 30, 76, 106, 113, 2456, 3967, 1096, 25919, 625167, 763632, 4346708, 3410299, 42789643, 45400998, 984654252, 832982009, 235824634, 7519905828

Basic calculations (n = 28916981)

Multiplication

n×y

n×2	57833962
n×3	86750943
n×4	115667924
n×5	144584905

Division

n÷y

n÷2	14458490.5
n÷3	9638993.6666667
n÷3	7229245.25
n÷5	5783396.2

Exponentiation

n^y

n²	836191790154361
n³	2.418014210825E+22
n⁴	6.9921670992155E+29
n⁵	2.0219236315684E+37

Nth Root

^y√n

²√n	5377.4511620283
³√n	306.93822918028
⁴√n	73.331106373955
⁵√n	31.062084008175

Divisors of 28916981

1, 28916981

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	28916982	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	14458491	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	5377.4512550092	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999999308365	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28916981 can be divided by 2 positive divisors. The sum of these divisors (counting 28916981) is 28916982, the average is 14458491.

Base conversion 28916981

Base	System	Value
2	Binary	1101110010011110011110101
3	Ternary	2000102010122022
4	Quaternary	1232103303311
5	Quinary	24400320411
6	Senary	2511442525
8	Octal	156236365
10	Decimal	28916981
12	Duodecimal	9826445
16	Hexadecimal	1b93cf5
20	Vigesimal	90ec91
36	Base36	h7shh

Cryptographic Hash Functions

md5	ffb078026a9d9f5df2ff1e7dbf7d9b82
sha1	e0aa6390f586745f1d08e24fbba5d8a007e5a817
sha256	408659e10e52758d21894b75cf19a894ed3ea674a77ee3b1267e199b0e13bf8e
sha512	60f64d5e39cc8f71c33d56fe40a70e3c590c6569d085dd6653d6fc3df3763f3668a67cbd69f97064b7cd1b52779306938753ef9d53141b18183e7bd389f85fb5
ripemd-160	190794e90d65498cf1af2dd977b86a55e0ca648d

28916981 as geometric shapes

Circle

Radius = n

Diameter	57833962
Circumference	181690750.14719
Area	2.626973984941E+15

Sphere

Radius = n

Volume	1.0128554241338E+23
Surface area	1.0507895939764E+16
Circumference	181690750.14719

Square

Length = n

Perimeter	115667924
Area	836191790154361
Diagonal	40894786.713085

Cube

Length = n

Surface area	5017150740926166
Volume	2.418014210825E+22
Space diagonal	50085680.293504

Equilateral Triangle

Length = n

Perimeter	86750943
Area	3.6208166635483E+14
Altitude	25042840.146752

Triangular Pyramid

Length = n

Surface area	3.6208166635483E+14
Volume	2.8496570757996E+21
Height	13631595.571028