1991456079 is an odd 10-digits composite number following 1991456078
and preceding 1991456080 . In scientific notation, it is written as 1.991456079 × 10^9.
The sum of its digits is 51. It has a total of 4 prime factors and 16 positive divisors.
There are 1287942656 positive integers (up to 1991456079) that are relatively prime to 1991456079.
1991456079 has 16 divisors, whose sum is 2735791200
The reverse of 1991456079 is 9706541991
Previous prime number is 53
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 51
Digital Root 6
Name
one billion nine hundred ninety-one million four hundred fifty-six thousand seventy-nine
Scientific notation
1.991456079 × 10^9
Engineering notation
1.991456079 × 10^9
Prime Factorization
3 × 89 × 53 × 140729
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1991456079
Product of the distinct prime numbers
The prime factorization of 1991456079 is 3 × 89 × 53 × 140729.
Since it has a total of 4 prime factors.
5 , 4 , 62 , 30 , 918 , 609 , 960 , 4638 , 33686 , 9814 , 272561 , 123463 , 5698641 , 1915111 , 62064511 , 53089646 , 832306040 , 790702952 , 8379335941 , 234307080
n×2
3982912158
n×3
5974368237
n×4
7965824316
n×5
9957280395
n÷2
995728039.5
n÷3
663818693
n÷3
497864019.75
n÷5
398291215.8
n2
3965897314586054241
n3
7.8979103158222E+27
n4
1.5728341509841E+37
n5
3.1322301312361E+46
2 √n
44625.733372125
3 √n
1258.1243780377
4 √n
211.24803755804
5 √n
72.415935678061
1 , 3 , 53 , 89 , 159 , 267 , 4717 , 14151 , 140729 , 422187 , 7458637 , 12524881 , 22375911 , 37574643 , 663818693 , 1991456079
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
-1991456078
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 1991456079 can be divided by 16 positive divisors.
The sum of these divisors (counting 1991456079) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110110101100110011010101001111
3
Ternary
12010210021110011120
4
Quaternary
1312230303111033
5
Quinary
13034303043304
6
Senary
525335452023
8
Octal
16654632517
10
Decimal
1991456079
12
Duodecimal
476b27013
16
Hexadecimal
76b3354f
20
Vigesimal
1b26c03j
36
Base36
wxntcf
md5
4665cc1a6bfe3b26e371543cf347ccbb
sha1
86dca8fcea68db7e168c6ed24dee93ad13efb8c8
sha256
80f9c9760e4822f09cf893957f6a5a3fc64544d4576a8c8ffdaed5c8cbb70aaf
sha512
f41e3fb449786f66029b2c9aeb510cd6160552474b657cf9e719c02ab34c68eee953cdd515b83924e9a71241f7164dab817e43085181f3781ec69f4f99d2b27e
ripemd-160
f4fc192c0b76fc27fe46351f1ae441afd9eac20d
Diameter
3982912158
Circumference
12512687575.466
Area
1.2459233868395E+19
Volume
3.3082689369197E+28
Surface area
4.983693547358E+19
Circumference
12512687575.466
Perimeter
7965824316
Area
3965897314586054241
Diagonal
2816344195.7921
Surface area
2.3795383887516E+19
Volume
7.8979103158222E+27
Space diagonal
3449303109.8699
Perimeter
5974368237
Area
1.717283911616E+18
Altitude
1724651554.9349
Surface area
1.717283911616E+18
Volume
9.3077765692017E+26
Height
938781398.59738