20121579 is an odd 8-digits composite number following 20121578
and preceding 20121580 . In scientific notation, it is written as 2.0121579 × 10^7.
The sum of its digits is 27. It has a total of 2 prime factors and 4 positive divisors.
There are 13414380 positive integers (up to 20121579) that are relatively prime to 20121579.
20121579 has 4 divisors, whose sum is 22357320
The reverse of 20121579 is 97512102
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million one hundred twenty-one thousand five hundred seventy-nine
Scientific notation
2.0121579 × 10^7
Engineering notation
2.0121579 × 10^6
Prime Factorization
9 × 2235731
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20121579
Product of the distinct prime numbers
The prime factorization of 20121579 is 9 × 2235731.
Since it has a total of 2 prime factors.
9 , 4 , 68 , 75 , 921 , 592 , 5502 , 6765 , 49066 , 82293 , 372522 , 779965 , 2509706 , 5270724 , 66615078 , 72806423 , 352926674 , 248247615 , 5121886053 , 8183327576
n×2
40243158
n×3
60364737
n×4
80486316
n×5
100607895
n÷2
10060789.5
n÷3
6707193
n÷3
5030394.75
n÷5
4024315.8
n2
404877941453241
n3
8.1467834843088E+21
n4
1.6392614747541E+29
n5
3.2984529265922E+36
2 √n
4485.7083052735
3 √n
271.99067784516
4 √n
66.975430609094
5 √n
28.888993529517
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
-20121578
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 20121579 can be divided by 4 positive divisors.
The sum of these divisors (counting 20121579) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110000011111101011
3
Ternary
1101212021121200
4
Quaternary
1030300133223
5
Quinary
20122342304
6
Senary
1555135243
8
Octal
114603753
10
Decimal
20121579
12
Duodecimal
68a4523
16
Hexadecimal
13307eb
20
Vigesimal
65f3ij
36
Base36
bz9wr
md5
0f5576718839093bebd7341b7b24f374
sha1
e98f172083915cc6786f2e0257aed8b60cea3162
sha256
bfb4501dca46b16eaa687ea9734b5dab4e94aa7a48456e43f428f5196c7c449e
sha512
210681ca0cf97bcd8b1570c90fbc85d85b935ffd11e4f2b9ae5b91f24a4d35d55e01e7c97bd09dadb528194f82fdfebb4106e49b1ef03e5c5f5330a0e3c0fc95
ripemd-160
22eb0b49356e75c96fc86b6b62201593f8a306dd
Diameter
40243158
Circumference
126427609.53005
Area
1.2719615664701E+15
Volume
3.4125166859588E+22
Surface area
5.0878462658802E+15
Circumference
126427609.53005
Perimeter
80486316
Area
404877941453241
Diagonal
28456209.918162
Surface area
2429267648719446
Volume
8.1467834843088E+21
Space diagonal
34851597.156511
Perimeter
60364737
Area
1.7531729136523E+14
Altitude
17425798.578255
Surface area
1.7531729136523E+14
Volume
9.6010764110222E+20
Height
9485403.3060539