72508921 is an odd 8-digits composite number following 72508920
and preceding 72508922 . In scientific notation, it is written as 7.2508921 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 67230288 positive integers (up to 72508921) that are relatively prime to 72508921.
72508921 has 8 divisors, whose sum is 77950080
The reverse of 72508921 is 12980527
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
seventy-two million five hundred eight thousand nine hundred twenty-one
Scientific notation
7.2508921 × 10^7
Engineering notation
7.2508921 × 10^6
Prime Factorization
19 × 47 × 81197
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
72508921
Product of the distinct prime numbers
The prime factorization of 72508921 is 19 × 47 × 81197.
Since it has a total of 3 prime factors.
8 , 5 , 49 , 57 , 932 , 391 , 7572 , 5607 , 64317 , 52764 , 734030 , 987255 , 9198721 , 4869004 , 86518917 , 51030138 , 103340302 , 943458500 , 6812769929 , 808898763
n×2
145017842
n×3
217526763
n×4
290035684
n×5
362544605
n÷2
36254460.5
n÷3
24169640.333333
n÷3
18127230.25
n÷5
14501784.2
n2
5257543624584241
n3
3.8121881532903E+23
n4
2.7641764964406E+31
n5
2.0042745521047E+39
2 √n
8515.217026007
3 √n
416.99464785805
4 √n
92.277933581149
5 √n
37.331744814353
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
-72508920
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 72508921 can be divided by 8 positive divisors.
The sum of these divisors (counting 72508921) is 1, the average is 0.125.
Base
System
Value
2
Binary
100010100100110010111111001
3
Ternary
12001102211112121
4
Quaternary
10110212113321
5
Quinary
122030241141
6
Senary
11110041241
8
Octal
424462771
10
Decimal
72508921
12
Duodecimal
20349221
16
Hexadecimal
45265f9
20
Vigesimal
12d3c61
36
Base36
17648p
md5
04d619c6df81fada29376c31bf610ea7
sha1
2098fa60cf0cb2e9301a9c90a81fef32af9ffdea
sha256
a51f7e69ad609d555f823b862d67ecbaa2337cb422d867de5e99ca190d7e5277
sha512
8c5584d0fa75ee09cc276e6f163e6831daf0c47a1e50c2d8e5af12faa3ccc12fcba8344fc98142d502fa1525920ea5bba0aaf329990ead7a4742a2ba4821139b
ripemd-160
467729d2f6429fb94e1335ba2329625900203431
Diameter
145017842
Circumference
455586987.06665
Area
1.6517060426922E+16
Volume
1.5968456395305E+24
Surface area
6.6068241707687E+16
Circumference
455586987.06665
Perimeter
290035684
Area
5257543624584241
Diagonal
102543099.47124
Surface area
31545261747505446
Volume
3.8121881532903E+23
Space diagonal
125589135.174
Perimeter
217526763
Area
2.2765831701974E+15
Altitude
62794567.586999
Surface area
2.2765831701974E+15
Volume
4.4927068239177E+22
Height
34181033.15708