31386979 is an odd 8-digits composite number following 31386978
and preceding 31386980 . In scientific notation, it is written as 3.1386979 × 10^7.
The sum of its digits is 46. It has a total of 3 prime factors and 8 positive divisors.
There are 28932960 positive integers (up to 31386979) that are relatively prime to 31386979.
31386979 has 8 divisors, whose sum is 33847632
The reverse of 31386979 is 97968313
Previous prime number is 1091
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1
Name
thirty-one million three hundred eighty-six thousand nine hundred seventy-nine
Scientific notation
3.1386979 × 10^7
Engineering notation
3.1386979 × 10^6
Prime Factorization
13 × 1091 × 2213
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
31386979
Product of the distinct prime numbers
The prime factorization of 31386979 is 13 × 1091 × 2213.
Since it has a total of 3 prime factors.
2 , 7 , 52 , 93 , 424 , 724 , 3894 , 8733 , 29897 , 24572 , 64117 , 139249 , 205143 , 5607113 , 15254364 , 87915704 , 87715339 , 6373862 , 9406235692 , 4526589944
n×2
62773958
n×3
94160937
n×4
125547916
n×5
156934895
n÷2
15693489.5
n÷3
10462326.333333
n÷3
7846744.75
n÷5
6277395.8
n2
985142450746441
n3
3.0920645413587E+22
n4
9.705056482627E+29
n5
3.0461240401403E+37
2 √n
5602.4083214275
3 √n
315.43981227514
4 √n
74.849237280199
5 √n
31.575475789343
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
-31386978
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 31386979 can be divided by 8 positive divisors.
The sum of these divisors (counting 31386979) is 1, the average is 0.125.
Base
System
Value
2
Binary
1110111101110110101100011
3
Ternary
2012001121211201
4
Quaternary
1313232311203
5
Quinary
31013340404
6
Senary
3040422031
8
Octal
167566543
10
Decimal
31386979
12
Duodecimal
a617917
16
Hexadecimal
1deed63
20
Vigesimal
9g378j
36
Base36
ioqcj
md5
c3d468489f10015dc413d3f1f37d75ae
sha1
04fb1c7e9dad87762fae1e5d18e7b58fa279dfeb
sha256
b865f211432e0344c6093c157db91b2ce2bcf97afd01617d86e7b9c8a40f08a5
sha512
70cd8675e9d14d08b5430b19755c3379069bb697e04881a22ca82ead168038cc6b82634b4fd2b1ed2108fb6adbecc59cc1a7b3e5b3a107ceab1849774f8ae0a1
ripemd-160
94063f2405f701d55140333cceb6da61e89e6fbc
Diameter
62773958
Circumference
197210205.28955
Area
3.0949162860045E+15
Volume
1.2952009663411E+23
Surface area
1.2379665144018E+16
Circumference
197210205.28955
Perimeter
125547916
Area
985142450746441
Diagonal
44387891.38372
Surface area
5910854704478646
Volume
3.0920645413587E+22
Space diagonal
54363842.324097
Perimeter
94160937
Area
4.2657919434644E+14
Altitude
27181921.162049
Surface area
4.2657919434644E+14
Volume
3.6440330084354E+21
Height
14795963.794573