71978013 is an odd 8-digits composite number following 71978012
and preceding 71978014 . In scientific notation, it is written as 7.1978013 × 10^7.
The sum of its digits is 36. It has a total of 2 prime factors and 4 positive divisors.
There are 47985336 positive integers (up to 71978013) that are relatively prime to 71978013.
71978013 has 4 divisors, whose sum is 79975580
The reverse of 71978013 is 31087917
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
seventy-one million nine hundred seventy-eight thousand thirteen
Scientific notation
7.1978013 × 10^7
Engineering notation
7.1978013 × 10^6
Prime Factorization
9 × 7997557
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
71978013
Product of the distinct prime numbers
The prime factorization of 71978013 is 9 × 7997557.
Since it has a total of 2 prime factors.
8 , 6 , 20 , 87 , 18 , 633 , 5464 , 5031 , 65521 , 66017 , 367710 , 258672 , 3946124 , 2152021 , 59627136 , 96999096 , 20367708 , 815319285 , 7156580669 , 5472552500
n×2
143956026
n×3
215934039
n×4
287912052
n×5
359890065
n÷2
35989006.5
n÷3
23992671
n÷3
17994503.25
n÷5
14395602.6
n2
5180834355428169
n3
3.7290616258586E+23
n4
2.6841044618385E+31
n5
1.9319650584757E+39
2 √n
8483.9856789129
3 √n
415.97441325924
4 √n
92.108553777122
5 √n
37.276915627052
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-71978012
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 71978013 can be divided by 4 positive divisors.
The sum of these divisors (counting 71978013) is 1, the average is 0.25.
Base
System
Value
2
Binary
100010010100100110000011101
3
Ternary
12000102212021100
4
Quaternary
10102210300131
5
Quinary
121411244023
6
Senary
11050423313
8
Octal
422446035
10
Decimal
71978013
12
Duodecimal
20131b39
16
Hexadecimal
44a4c1d
20
Vigesimal
129h50d
36
Base36
16uql9
md5
ba8af8dd0b0cf356ea40fd8672c1b39c
sha1
8ab632696ebd63f6b71bb13aa04528dfdcb12efd
sha256
00558b4d590299d29cc41a98c85bab7e52bc38f1e815274f230d94f82a51c772
sha512
25d0af5c1e4f8c1adfcfe62299e44aad47e363c4e9fc8d706228c5b680e51c7ccb94fc4ffc036519b8feab4affff2e836501e2300b13e4d243c4c5b17ce58bd2
ripemd-160
021a558183cb8f5848c8764ae010dda3e6d4cd2f
Diameter
143956026
Circumference
452251193.72158
Area
1.6276071150479E+16
Volume
1.5620256811441E+24
Surface area
6.5104284601915E+16
Circumference
452251193.72158
Perimeter
287912052
Area
5180834355428169
Diagonal
101792282.17727
Surface area
31085006132569014
Volume
3.7290616258586E+23
Space diagonal
124669575.54385
Perimeter
215934039
Area
2.2433670823E+15
Altitude
62334787.771927
Surface area
2.2433670823E+15
Volume
4.3947412718452E+22
Height
33930760.725756