Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

68540981 (number)

68540981 is an odd 8-digits composite number following 68540980 and preceding 68540982. In scientific notation, it is written as 6.8540981 × 10^7. The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors. There are 68441100 positive integers (up to 68540981) that are relatively prime to 68540981.

Interesting facts

68540981 has 4 divisors, whose sum is 68640864
The reverse of 68540981 is 18904586
Previous prime number is 691

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5

Name

Name	sixty-eight million five hundred forty thousand nine hundred eighty-one

Notation

Scientific notation	6.8540981 × 10^7
Engineering notation	6.8540981 × 10^6

Prime Factorization of 68540981

Prime Factorization 691 × 99191

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	68540981	Product of the distinct prime numbers

The prime factorization of 68540981 is 691 × 99191. Since it has a total of 2 prime factors.

Most popular turbo-numbers

6, 7, 75, 76, 197, 872, 8324, 3125, 57711, 42999, 546775, 65775, 665705, 2324105, 60739852, 87290504, 370059845, 954048397, 586279076, 5789032969

Basic calculations (n = 68540981)

Multiplication

n×y

n×2	137081962
n×3	205622943
n×4	274163924
n×5	342704905

Division

n÷y

n÷2	34270490.5
n÷3	22846993.666667
n÷3	17135245.25
n÷5	13708196.2

Exponentiation

n^y

n²	4697866076442361
n³	3.2199634948598E+23
n⁴	2.2069945672188E+31
n⁵	1.5126957269885E+39

Nth Root

^y√n

²√n	8278.9480611971
³√n	409.24505333847
⁴√n	90.98872491247
⁵√n	36.913911204904

Divisors of 68540981

1, 691, 99191, 68540981

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	-68540980	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 68540981 can be divided by 4 positive divisors. The sum of these divisors (counting 68540981) is 1, the average is 0.25.

Base conversion 68540981

Base	System	Value
2	Binary	100000101011101101000110101
3	Ternary	11202222020112212
4	Quaternary	10011131220311
5	Quinary	120021302411
6	Senary	10445023205
8	Octal	405355065
10	Decimal	68540981
12	Duodecimal	1ab54b05
16	Hexadecimal	415da35
20	Vigesimal	1187c91
36	Base36	14t2k5

Cryptographic Hash Functions

md5	8d8a3fc8f5fb3ea8b279049f442fd724
sha1	8732ca883683794de1417f86e7384217ab51de68
sha256	b53d15444b00c4860199d1383e5cf350d51f0ec7906e3e4969fb9238f5c75e9b
sha512	2ce0b9bfee40e1e3cdd433a246a821908e2957ae948167bd1c7c40a5a1b5f37d81ea8a6a409208281bb757bf9fcd67b6a36e0a1136a6721763492bad1f97400c
ripemd-160	7119ec4ff4451c3e4e3001c7cb7c2e83f7718ebe

68540981 as geometric shapes

Circle

Radius = n

Diameter	137081962
Circumference	430655684.75888
Area	1.47587815533E+16

Sphere

Radius = n

Volume	1.3487751547039E+24
Surface area	5.90351262132E+16
Circumference	430655684.75888

Square

Length = n

Perimeter	274163924
Area	4697866076442361
Diagonal	96931584.908557

Cube

Length = n

Surface area	28187196458654166
Volume	3.2199634948598E+23
Space diagonal	118716461.49261

Equilateral Triangle

Length = n

Perimeter	205622943
Area	2.0342356828881E+15
Altitude	59358230.746307

Triangular Pyramid

Length = n

Surface area	2.0342356828881E+15
Volume	3.7947633706475E+22
Height	32310528.302852