1991372 is an even 7-digits composite number following 1991371
and preceding 1991373 . In scientific notation, it is written as 1.991372 × 10^6.
The sum of its digits is 32. It has a total of 4 prime factors and 12 positive divisors.
There are 961296 positive integers (up to 1991372) that are relatively prime to 1991372.
1991372 has 12 divisors, whose sum is 3605280
The reverse of 1991372 is 2731991
Previous prime number is 29
Is Prime? no
Number parity even
Number length 7
Sum of Digits 32
Digital Root 5
Name
one million nine hundred ninety-one thousand three hundred seventy-two
Scientific notation
1.991372 × 10^6
Engineering notation
1.991372 × 10^6
Prime Factorization
2 × 2 × 29 × 17167
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
995686
Product of the distinct prime numbers
The prime factorization of 1991372 is 2 × 2 × 29 × 17167.
Since it has a total of 4 prime factors.
3 , 1 , 42 , 34 , 223 , 923 , 8588 , 1054 , 84153 , 75104 , 196735 , 1223 , 6583445 , 2624066 , 95686487 , 27391404 , 851293435 , 909399345 , 7380347953 , 8972375201
n×2
3982744
n×3
5974116
n×4
7965488
n×5
9956860
n÷2
995686
n÷3
663790.66666667
n÷3
497843
n÷5
398274.4
n2
3965562442384
n3
7896910012015110848
n4
1.5725685484447E+25
n5
3.1315689754533E+31
2 √n
1411.1598066838
3 √n
125.81066718428
4 √n
37.565407048026
5 √n
18.189907026517
1 , 2 , 4 , 29 , 58 , 116 , 17167 , 34334 , 68668 , 497843 , 995686 , 1991372
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1991371
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1991372 can be divided by 12 positive divisors.
The sum of these divisors (counting 1991372) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
111100110001011001100
3
Ternary
10202011122112
4
Quaternary
13212023030
5
Quinary
1002210442
6
Senary
110403152
8
Octal
7461314
10
Decimal
1991372
12
Duodecimal
8004b8
16
Hexadecimal
1e62cc
20
Vigesimal
c8i8c
36
Base36
16ojw
md5
8af7a27d8f0b9791e181844e36e7c0d9
sha1
c7078c8c209b305d3c06a673ef540f017069bfd4
sha256
3bdad25039380a51fd819aac3e1c8a643201e66f9d38edf5b9239645fd3d8483
sha512
9c3fbabee7361c8051d196f0cca35376a32a2af683b39acceb8e533ecfb47c84634d1277088306f7eef473089480aeae22d02193df4efbcd4c9d602d360c01c4
ripemd-160
d8c1e8513684eba3fc211e01b7db141e1e60b802
Diameter
3982744
Circumference
12512159.291529
Area
12458181836345
Volume
3.3078499306408E+19
Surface area
49832727345381
Circumference
12512159.291529
Perimeter
7965488
Area
3965562442384
Diagonal
2816225.29013
Surface area
23793374654304
Volume
7896910012015110848
Space diagonal
3449157.4807701
Perimeter
5974116
Area
1717138907699
Altitude
1724578.740385
Surface area
1717138907699
Volume
9.3065976998597E+17
Height
938741.76337668