20149978 is an even 8-digits composite number following 20149977
and preceding 20149979 . In scientific notation, it is written as 2.0149978 × 10^7.
The sum of its digits is 40. It has a total of 4 prime factors and 16 positive divisors.
There are 9375696 positive integers (up to 20149978) that are relatively prime to 20149978.
20149978 has 16 divisors, whose sum is 32394240
The reverse of 20149978 is 87994102
Previous prime number is 37
Is Prime? no
Number parity even
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty million one hundred forty-nine thousand nine hundred seventy-eight
Scientific notation
2.0149978 × 10^7
Engineering notation
2.0149978 × 10^6
Prime Factorization
2 × 23 × 37 × 11839
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20149978
Product of the distinct prime numbers
The prime factorization of 20149978 is 2 × 23 × 37 × 11839.
Since it has a total of 4 prime factors.
4 , 10 , 33 , 15 , 428 , 233 , 8202 , 1780 , 74678 , 46781 , 172860 , 565648 , 7051866 , 9160475 , 99507787 , 79851581 , 854644867 , 703636360 , 7741935332 , 87476875
n×2
40299956
n×3
60449934
n×4
80599912
n×5
100749890
n÷2
10074989
n÷3
6716659.3333333
n÷3
5037494.5
n÷5
4029995.6
n2
406021613400484
n3
8.1813265775443E+21
n4
1.6485355054833E+29
n5
3.3217954167708E+36
2 √n
4488.8726869895
3 √n
272.11857755215
4 √n
66.99904989617
5 √n
28.897143543523
1 , 2 , 23 , 37 , 46 , 74 , 851 , 1702 , 11839 , 23678 , 272297 , 438043 , 544594 , 876086 , 10074989 , 20149978
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
-20149977
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 20149978 can be divided by 16 positive divisors.
The sum of these divisors (counting 20149978) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110111011011011010
3
Ternary
1101220201120111
4
Quaternary
1030313123122
5
Quinary
20124244403
6
Senary
1555514534
8
Octal
114673332
10
Decimal
20149978
12
Duodecimal
68b8a4a
16
Hexadecimal
13376da
20
Vigesimal
65ieii
36
Base36
bzvtm
md5
8b1451fc21d29a1d441bf44fa7bae1dc
sha1
7662fd6088e98c3942f921bb6e181f4893b49f1e
sha256
46a5f50b9ea62f0b6742a5d1b647202611988cd157b763462d6251f7b097c38a
sha512
e98950a02c3b7752030f31d29a6a37380a25df0b1b975f7996ac0a7dab443750226f47ef43f7b6a6ecafda7480c125b786e5eba809483c658a1010d91007d4e9
ripemd-160
2256a3fd26d4613a1b83914118fa7ffffd4393f0
Diameter
40299956
Circumference
126606045.70959
Area
1.2755545178576E+15
Volume
3.4269860630176E+22
Surface area
5.1022180714305E+15
Circumference
126606045.70959
Perimeter
80599912
Area
406021613400484
Diagonal
28496372.169119
Surface area
2436129680402904
Volume
8.1813265775443E+21
Space diagonal
34900785.667395
Perimeter
60449934
Area
1.7581251584518E+14
Altitude
17450392.833698
Surface area
1.7581251584518E+14
Volume
9.6417858368055E+20
Height
9498790.7230398