69897981 is an odd 8-digits composite number following 69897980
and preceding 69897982 . In scientific notation, it is written as 6.9897981 × 10^7.
The sum of its digits is 57. It has a total of 2 prime factors and 4 positive divisors.
There are 46598652 positive integers (up to 69897981) that are relatively prime to 69897981.
69897981 has 4 divisors, whose sum is 93197312
The reverse of 69897981 is 18979896
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 57
Digital Root 3
Name
sixty-nine million eight hundred ninety-seven thousand nine hundred eighty-one
Scientific notation
6.9897981 × 10^7
Engineering notation
6.9897981 × 10^6
Prime Factorization
3 × 23299327
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
69897981
Product of the distinct prime numbers
The prime factorization of 69897981 is 3 × 23299327.
Since it has a total of 2 prime factors.
5 , 8 , 12 , 92 , 216 , 738 , 5202 , 5213 , 30738 , 24799 , 898494 , 781482 , 3168886 , 1871771 , 8208665 , 66464183 , 632418593 , 383030984 , 6724515540 , 9701012995
n×2
139795962
n×3
209693943
n×4
279591924
n×5
349489905
n÷2
34948990.5
n÷3
23299327
n÷3
17474495.25
n÷5
13979596.2
n2
4885727747876361
n3
3.4150250529223E+23
n4
2.3870335626369E+31
n5
1.6684882660756E+39
2 √n
8360.5012409544
3 √n
411.92821863473
4 √n
91.435776591848
5 √n
37.05893430596
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
-69897980
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 69897981 can be divided by 4 positive divisors.
The sum of these divisors (counting 69897981) is 1, the average is 0.25.
Base
System
Value
2
Binary
100001010101000111011111101
3
Ternary
11212112012000010
4
Quaternary
10022220323331
5
Quinary
120343213411
6
Senary
10534053433
8
Octal
412507375
10
Decimal
69897981
12
Duodecimal
1b4aa279
16
Hexadecimal
42a8efd
20
Vigesimal
11gh4j1
36
Base36
15m5ml
md5
b63fd6ae9e7ba6eda47875111a3cd082
sha1
f4957f67e000404512e9cc60bfb092a243254f8a
sha256
73771e28c713de1660103bc1102c0c59354482588347bf1cadfabcd21605e933
sha512
a0efac62c722660304749a3f2434caa4795a1cff2406fb177e9578b6e084988bd80d360f7659963f4cb385448ec824a011db61bd0d15e2722f8b204b974dcf74
ripemd-160
971cd3e035aa9ffe7077fcdb2d74a9de923f4fc8
Diameter
139795962
Circumference
439181967.22072
Area
1.5348966400168E+16
Volume
1.4304823490781E+24
Surface area
6.1395865600673E+16
Circumference
439181967.22072
Perimeter
279591924
Area
4885727747876361
Diagonal
98850672.712697
Surface area
29314366487258166
Volume
3.4150250529223E+23
Space diagonal
121066854.43848
Perimeter
209693943
Area
2.1155821728177E+15
Altitude
60533427.219242
Surface area
2.1155821728177E+15
Volume
4.0246456214056E+22
Height
32950224.237566