7921997105 is an odd 10-digits composite number following 7921997104
and preceding 7921997106 . In scientific notation, it is written as 7.921997105 × 10^9.
The sum of its digits is 50. It has a total of 4 prime factors and 16 positive divisors.
There are 5654649600 positive integers (up to 7921997105) that are relatively prime to 7921997105.
7921997105 has 16 divisors, whose sum is 8216140800
The reverse of 7921997105 is 5017991297
Previous prime number is 509
Is Prime? no Number parity odd Number length 10 Sum of Digits 50 Digital Root 5
Name
seven billion nine hundred twenty-one million nine hundred ninety-seven thousand one hundred five
Scientific notation
7.921997105 × 10^9
Engineering notation
7.921997105 × 10^9
Prime Factorization
55 × 61 × 509 × 4639
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
7921997105 Product of the distinct prime numbers
The prime factorization of 7921997105 is 55 × 61 × 509 × 4639.
Since it has a total of 4 prime factors.
9 , 7 , 93 , 36 , 262 , 953 , 8139 , 656 , 92997 , 83685 , 76571 , 663408 , 3717389 , 6839746 , 44277726 , 42004889 , 418362735 , 724736389 , 8190437367 , 3917471297
n×2
15843994210
n×3
23765991315
n×4
31687988420
n×5
39609985525
n÷2
3960998552.5
n÷3
2640665701.6667
n÷3
1980499276.25
n÷5
1584399421
n2
6.2758038131628E+19
n3
4.9716899639424E+29
n4
3.9385713501309E+39
n5
3.1201350833573E+49
2 √n89005.601537207
3 √n1993.4785169928
4 √n298.3380658535
5 √n95.448022675404
1 , 55 , 61 , 509 , 3355 , 4639 , 27995 , 31049 , 255145 , 282979 , 1707695 , 2361251 , 15563845 , 129868805 , 144036311 , 7921997105
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
-7921997104 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 7921997105 can be divided by 16 positive divisors.
The sum of these divisors (counting 7921997105) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111011000001100000001010100110001
3
Ternary
202110002122011001012
4
Quaternary
13120030001110301
5
Quinary
112211012401410
6
Senary
3350031520305
8
Octal
73014012461
10
Decimal
7921997105
12
Duodecimal
1651089095
16
Hexadecimal
1d8301531
20
Vigesimal
63fc9cf5
36
Base36
3n0jw35
md5
20a6054d5392db423435f7605bd3c08e
sha1
761db887ed845edcd9315c7dd9722c81340a8d3b
sha256
c896b1054e12a37f0a30cd7a880a67281ed2b594de6d47b224a0061614f60a55
sha512
622191707dd9b334f8680851d395e230c9455b451d3fb9507c73fe047e9bcad8ec5396bbfb58b5470a13c4fbd545b2fa6b8f917a67e1cd8f1a38cf98f1d5ccd1
ripemd-160
128745b9b0ee4052e4a1b7363cff3536f55435b8
Diameter
15843994210
Circumference
49775375813.655
Area
1.9716019154803E+20
Volume
2.0825366222197E+30
Surface area
7.8864076619213E+20
Circumference
49775375813.655
Perimeter
31687988420
Area
6.2758038131628E+19
Diagonal
11203395746.971
Surface area
3.7654822878977E+20
Volume
4.9716899639424E+29
Space diagonal
13721301483.274
Perimeter
23765991315
Area
2.7175027656831E+19
Altitude
6860650741.6368
Surface area
2.7175027656831E+19
Volume
5.8591928124346E+28
Height
3734465248.9905