99978021 is an odd 8-digits composite number following 99978020
and preceding 99978022 . In scientific notation, it is written as 9.9978021 × 10^7.
The sum of its digits is 45. It has a total of 5 prime factors and 32 positive divisors.
There are 55411200 positive integers (up to 99978021) that are relatively prime to 99978021.
99978021 has 32 divisors, whose sum is 131725440
The reverse of 99978021 is 12087999
Previous prime number is 131
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
ninety-nine million nine hundred seventy-eight thousand twenty-one
Scientific notation
9.9978021 × 10^7
Engineering notation
9.9978021 × 10^6
Prime Factorization
9 × 13 × 11 × 131 × 593
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
99978021
Product of the distinct prime numbers
The prime factorization of 99978021 is 9 × 13 × 11 × 131 × 593.
Since it has a total of 5 prime factors.
2 , 10 , 33 , 47 , 779 , 809 , 3427 , 1180 , 35566 , 66128 , 202218 , 73451 , 325953 , 1628445 , 61684298 , 62646414 , 712098812 , 949321586 , 6566343565 , 6997455199
n×2
199956042
n×3
299934063
n×4
399912084
n×5
499890105
n÷2
49989010.5
n÷3
33326007
n÷3
24994505.25
n÷5
19995604.2
n2
9995604683076441
n3
9.9934077491231E+23
n4
9.991211298034E+31
n5
9.9890153297028E+39
2 √n
9998.9009896088
3 √n
464.1248750426
4 √n
99.994504797058
5 √n
39.808966901976
1 , 9 , 11 , 13 , 99 , 117 , 131 , 143 , 593 , 1179 , 1287 , 1441 , 1703 , 5337 , 6523 , 7709 , 12969 , 15327 , 18733 , 58707 , 69381 , 77683 , 84799 , 168597 , 699147 , 763191 , 854513 , 1009879 , 7690617 , 9088911 , 11108669 , 99978021
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-99978020
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 99978021 can be divided by 32 positive divisors.
The sum of these divisors (counting 99978021) is 1, the average is 0.03125.
Base
System
Value
2
Binary
101111101011000101100100101
3
Ternary
20222010102001200
4
Quaternary
11331120230211
5
Quinary
201043244041
6
Senary
13530513113
8
Octal
575305445
10
Decimal
99978021
12
Duodecimal
29595799
16
Hexadecimal
5f58b25
20
Vigesimal
1b4h511
36
Base36
1nivj9
md5
1d18d5472a0f11d52ded667b9ec42e97
sha1
8418807a3d181dcdceb5c146a2cb5f9c60e4b48b
sha256
43e1beb5c2bffd03d0c9a4c5bdae61fb9698fb7d97b9775a8d9d5b09b9f2876d
sha512
18525fe32642eef409963e15b082bc6d9d7d45988a551ae9d45f822dd8984551d3ad5d2a3cdcbae3af22950215150c6536cf0f5598aa9d1ebe54d5c95e6005bc
ripemd-160
a274b4b39eca2a02b3367cd32abd3d97b9f1ce75
Diameter
199956042
Circumference
628180432.58809
Area
3.1402118240541E+16
Volume
4.1860288491963E+24
Surface area
1.2560847296216E+17
Circumference
628180432.58809
Perimeter
399912084
Area
9995604683076441
Diagonal
141390273.23742
Surface area
59973628098458646
Volume
9.9934077491231E+23
Space diagonal
173167012.01219
Perimeter
299934063
Area
4.3282237908654E+15
Altitude
86583506.006094
Surface area
4.3282237908654E+15
Volume
1.1777343977612E+23
Height
47130091.079141