12157421 is an odd 8-digits composite number following 12157420
and preceding 12157422 . In scientific notation, it is written as 1.2157421 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 12143712 positive integers (up to 12157421) that are relatively prime to 12157421.
12157421 has 4 divisors, whose sum is 12171132
The reverse of 12157421 is 12475121
Previous prime number is 953
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twelve million one hundred fifty-seven thousand four hundred twenty-one
Scientific notation
1.2157421 × 10^7
Engineering notation
1.2157421 × 10^6
Prime Factorization
953 × 12757
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
12157421
Product of the distinct prime numbers
The prime factorization of 12157421 is 953 × 12757.
Since it has a total of 2 prime factors.
6 , 3 , 72 , 63 , 236 , 802 , 8373 , 6947 , 99752 , 16883 , 644859 , 896497 , 9164173 , 4935880 , 24246362 , 45336766 , 560949490 , 234186383 , 6133171804 , 716969773
n×2
24314842
n×3
36472263
n×4
48629684
n×5
60787105
n÷2
6078710.5
n÷3
4052473.6666667
n÷3
3039355.25
n÷5
2431484.2
n2
147802885371241
n3
1.7969019024729E+21
n4
2.1845692924064E+28
n5
2.6558728591457E+35
2 √n
3486.7493457374
3 √n
229.9396249847
4 √n
59.048703167279
5 √n
26.119706418865
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
-12157420
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 12157421 can be divided by 4 positive divisors.
The sum of these divisors (counting 12157421) is 1, the average is 0.25.
Base
System
Value
2
Binary
101110011000000111101101
3
Ternary
211212122211212
4
Quaternary
232120013231
5
Quinary
11103014141
6
Senary
1112324205
8
Octal
56300755
10
Decimal
12157421
12
Duodecimal
40a3665
16
Hexadecimal
b981ed
20
Vigesimal
3fjdb1
36
Base36
78kq5
md5
df75912f62b3ac2dbddd7061a42e5356
sha1
cd7990764e550ea1a9fbb952604dfcc750c0cfb1
sha256
d84acc0e5522bbd2d0a9f0e94135fd67d8419083052cdcf651994f51030fde31
sha512
763ab7c527a0d8edeca00e9119ef7fc3f6081a2ceab0496c8a68d33d5a5a1bc2ffe77f1d7dd0e8787c5798bdfbfa4fac2828a7fcb83407131ac02cc0b995550c
ripemd-160
fdb2beb364a5e60ab4864cf5fed26e8e30d3ad15
Diameter
24314842
Circumference
76387329.000397
Area
4.6433645886166E+14
Volume
7.5268450880406E+21
Surface area
1.8573458354467E+15
Circumference
76387329.000397
Perimeter
48629684
Area
147802885371241
Diagonal
17193189.661679
Surface area
886817312227446
Volume
1.7969019024729E+21
Space diagonal
21057270.861005
Perimeter
36472263
Area
64000526742067
Altitude
10528635.430502
Surface area
64000526742067
Volume
2.1176692006093E+20
Height
5731063.2205598