19977891 is an odd 8-digits composite number following 19977890
and preceding 19977892 . In scientific notation, it is written as 1.9977891 × 10^7.
The sum of its digits is 51. It has a total of 3 prime factors and 8 positive divisors.
There are 12958560 positive integers (up to 19977891) that are relatively prime to 19977891.
19977891 has 8 divisors, whose sum is 27357264
The reverse of 19977891 is 19877991
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 51
Digital Root 6
Name
nineteen million nine hundred seventy-seven thousand eight hundred ninety-one
Scientific notation
1.9977891 × 10^7
Engineering notation
1.9977891 × 10^6
Prime Factorization
3 × 37 × 179981
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
19977891
Product of the distinct prime numbers
The prime factorization of 19977891 is 3 × 37 × 179981.
Since it has a total of 3 prime factors.
2 , 1 , 19 , 81 , 923 , 860 , 5986 , 3442 , 63958 , 60906 , 69944 , 838554 , 6824210 , 3262965 , 34027556 , 77577975 , 686344374 , 511030447 , 7754266330 , 8756213158
n×2
39955782
n×3
59933673
n×4
79911564
n×5
99889455
n÷2
9988945.5
n÷3
6659297
n÷3
4994472.75
n÷5
3995578.2
n2
399116128807881
n3
7.9734985176658E+21
n4
1.5929368427459E+29
n5
3.1823518614262E+36
2 √n
4469.6634101462
3 √n
271.34170301534
4 √n
66.855541357065
5 √n
28.847615965016
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-19977890
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 19977891 can be divided by 8 positive divisors.
The sum of these divisors (counting 19977891) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100001101011010100011
3
Ternary
1101120222111220
4
Quaternary
1030031122203
5
Quinary
20103243031
6
Senary
1552110123
8
Octal
114153243
10
Decimal
19977891
12
Duodecimal
6835343
16
Hexadecimal
130d6a3
20
Vigesimal
64h4eb
36
Base36
bw71f
md5
396b3221cc42bee766a582040629ec51
sha1
629de4bd745c1b0deeda700aedc2a9f7951eefcd
sha256
de683e9012ce033c82f7a141b2335ddbaf0769e156ba48139724caf01fc83a32
sha512
a5e62f6378ee03e76880c39d123accfb2081f491550c5baa341561b560e364b9fea9a4e9e9aaf3450830c6d208e16795ad51253a96f30d2207dc1d63d1a74c3b
ripemd-160
3377592e917fbea5c8cae2ce428fb493984bbdac
Diameter
39955782
Circumference
125524791.19964
Area
1.253860298192E+15
Volume
3.3399312488677E+22
Surface area
5.0154411927681E+15
Circumference
125524791.19964
Perimeter
79911564
Area
399116128807881
Diagonal
28253004.399811
Surface area
2394696772847286
Volume
7.9734985176658E+21
Space diagonal
34602722.240073
Perimeter
59933673
Area
1.7282235330386E+14
Altitude
17301361.120037
Surface area
1.7282235330386E+14
Volume
9.3968581193706E+20
Height
9417668.1332705