28778001 is an odd 8-digits composite number following 28778000
and preceding 28778002 . In scientific notation, it is written as 2.8778001 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 16405200 positive integers (up to 28778001) that are relatively prime to 28778001.
28778001 has 16 divisors, whose sum is 43957248
The reverse of 28778001 is 10087782
Previous prime number is 491
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-eight million seven hundred seventy-eight thousand one
Scientific notation
2.8778001 × 10^7
Engineering notation
2.8778001 × 10^6
Prime Factorization
7 × 3 × 491 × 2791
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
28778001
Product of the distinct prime numbers
The prime factorization of 28778001 is 7 × 3 × 491 × 2791.
Since it has a total of 4 prime factors.
1 , 1 , 71 , 37 , 389 , 117 , 3579 , 9955 , 3312 , 94988 , 85877 , 400433 , 1627128 , 1962434 , 44565625 , 2762918 , 516005129 , 661544987 , 3234545493 , 3832895242
n×2
57556002
n×3
86334003
n×4
115112004
n×5
143890005
n÷2
14389000.5
n÷3
9592667
n÷3
7194500.25
n÷5
5755600.2
n2
828173341556001
n3
2.3833173251472E+22
n4
6.8587108366403E+29
n5
1.9737998731555E+37
2 √n
5364.5131186343
3 √n
306.44570658989
4 √n
73.242836637001
5 √n
31.032168494076
1 , 3 , 7 , 21 , 491 , 1473 , 2791 , 3437 , 8373 , 10311 , 19537 , 58611 , 1370381 , 4111143 , 9592667 , 28778001
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28778000
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28778001 can be divided by 16 positive divisors.
The sum of these divisors (counting 28778001) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1101101110001111000010001
3
Ternary
2000011001222220
4
Quaternary
1231301320101
5
Quinary
24331344001
6
Senary
2504451253
8
Octal
155617021
10
Decimal
28778001
12
Duodecimal
9779b29
16
Hexadecimal
1b71e11
20
Vigesimal
8jh501
36
Base36
h4t8x
md5
ac9ba9ed7f3f78b37f558a005d4f08f0
sha1
372b26e18858bd99d5eee15969a52cf365f73dd6
sha256
3cf19a55e68269165d52d7231d46244b3e603c2557430ec040305f9f4b98f3f1
sha512
8d1858950cfb4996b98364f2921fc4e39634fa2cffbb8a4a40f5e98d7b75aa719c81b11f9fbc7d09e4ab14fcf20be4c8204c4bcf4fd1992b3a4c68923c61ac3c
ripemd-160
201d734bf20a2acc1965914b3d30f073e2566aa7
Diameter
57556002
Circumference
180817513.0532
Area
2.6017832857312E+15
Volume
9.9832162664743E+22
Surface area
1.0407133142925E+16
Circumference
180817513.0532
Perimeter
115112004
Area
828173341556001
Diagonal
40698239.312186
Surface area
4969040049336006
Volume
2.3833173251472E+22
Space diagonal
49844959.872268
Perimeter
86334003
Area
3.5860957626227E+14
Altitude
24922479.936134
Surface area
3.5860957626227E+14
Volume
2.8087664038849E+21
Height
13566079.770729