20151397 is an odd 8-digits composite number following 20151396
and preceding 20151398 . In scientific notation, it is written as 2.0151397 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 6 positive divisors.
There are 17272584 positive integers (up to 20151397) that are relatively prime to 20151397.
20151397 has 6 divisors, whose sum is 23441478
The reverse of 20151397 is 79315102
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million one hundred fifty-one thousand three hundred ninety-seven
Scientific notation
2.0151397 × 10^7
Engineering notation
2.0151397 × 10^6
Prime Factorization
7 × 7 × 411253
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
2878771
Product of the distinct prime numbers
The prime factorization of 20151397 is 7 × 7 × 411253.
Since it has a total of 3 prime factors.
2 , 1 , 27 , 62 , 170 , 953 , 8793 , 4471 , 27128 , 22449 , 618066 , 821977 , 7857910 , 7677045 , 72604479 , 54604083 , 4082813 , 682038307 , 288652971 , 206922513
n×2
40302794
n×3
60454191
n×4
80605588
n×5
100756985
n÷2
10075698.5
n÷3
6717132.3333333
n÷3
5037849.25
n÷5
4030279.4
n2
406078801051609
n3
8.183055133275E+21
n4
1.6489999266351E+29
n5
3.3229652174595E+36
2 √n
4489.0307417081
3 √n
272.12496510582
4 √n
67.000229415339
5 √n
28.897550530485
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20151396
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20151397 can be divided by 6 positive divisors.
The sum of these divisors (counting 20151397) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1001100110111110001100101
3
Ternary
1101220210112001
4
Quaternary
1030313301211
5
Quinary
20124321042
6
Senary
1555525301
8
Octal
114676145
10
Decimal
20151397
12
Duodecimal
68b9831
16
Hexadecimal
1337c65
20
Vigesimal
65ii9h
36
Base36
bzwx1
md5
3565546b9a6fc69242d840bce9d6b3f1
sha1
b226cdd804234c01c450059711a8ee6fe0700119
sha256
71788c3f0cf00b0e776d83768c4ed9784ca4e4985f133352d2a1d52de881f8dd
sha512
1ce656cf0806870f56094049cfc9900d5d1ed0a268b9089ed7e5bd2e73c38f86c12aede1096be16d3b4da000c3b58c69900e049c2bd8e22d652c14f75bbac39a
ripemd-160
c169840f91f8370e37518c877b1e6d92f3a68e1e
Diameter
40302794
Circumference
126614961.54954
Area
1.2757341781623E+15
Volume
3.4277101187489E+22
Surface area
5.1029367126491E+15
Circumference
126614961.54954
Perimeter
80605588
Area
406078801051609
Diagonal
28498378.938165
Surface area
2436472806309654
Volume
8.183055133275E+21
Space diagonal
34903243.447491
Perimeter
60454191
Area
1.7583727882451E+14
Altitude
17451621.723746
Surface area
1.7583727882451E+14
Volume
9.6438229592702E+20
Height
9499459.6460548