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

72161821 (number)

72161821 is an odd 8-digits composite number following 72161820 and preceding 72161822. In scientific notation, it is written as 7.2161821 × 10^7. The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors. There are 67807680 positive integers (up to 72161821) that are relatively prime to 72161821.

Interesting facts

72161821 has 8 divisors, whose sum is 76529664
The reverse of 72161821 is 12816127
Previous prime number is 691

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1

Name

Name	seventy-two million one hundred sixty-one thousand eight hundred twenty-one

Notation

Scientific notation	7.2161821 × 10^7
Engineering notation	7.2161821 × 10^6

Prime Factorization of 72161821

Prime Factorization 17 × 691 × 6143

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	72161821	Product of the distinct prime numbers

The prime factorization of 72161821 is 17 × 691 × 6143. Since it has a total of 3 prime factors.

Most popular turbo-numbers

9, 7, 28, 19, 314, 276, 3715, 2443, 764, 41498, 757145, 852453, 200189, 664614, 32880622, 24664994, 404474909, 467302230, 2910087632, 7500832754

Basic calculations (n = 72161821)

Multiplication

n×y

n×2	144323642
n×3	216485463
n×4	288647284
n×5	360809105

Division

n÷y

n÷2	36080910.5
n÷3	24053940.333333
n÷3	18040455.25
n÷5	14432364.2

Exponentiation

n^y

n²	5207328410036041
n³	3.7577030061324E+23
n⁴	2.7116269169968E+31
n⁵	1.9567593620311E+39

Nth Root

^y√n

²√n	8494.8114163882
³√n	416.32819922773
⁴√n	92.167301231989
⁵√n	37.295934788156

Divisors of 72161821

1, 17, 691, 6143, 11747, 104431, 4244813, 72161821

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-72161820	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 72161821 can be divided by 8 positive divisors. The sum of these divisors (counting 72161821) is 1, the average is 0.125.

Base conversion 72161821

Base	System	Value
2	Binary	100010011010001101000011101
3	Ternary	12000210012102001
4	Quaternary	10103101220131
5	Quinary	121433134241
6	Senary	11054402301
8	Octal	423215035
10	Decimal	72161821
12	Duodecimal	20200391
16	Hexadecimal	44d1a1d
20	Vigesimal	12b04b1
36	Base36	16yof1

Cryptographic Hash Functions

md5	f47e2d0163be5a868e75c3e7de69c2c1
sha1	8bdcd30026aabeb7d30890a933faadce7d29e05c
sha256	8b4a49c67410505e22eda3594ea8fdf805d42a5cdca17284cef762c1b93c8ab0
sha512	e76c32965009e9c66054d9a8b3d786499806e51722eb7db28bc94c20bb85897bc99202a085cb1825c1f11ec9458c127f180da7bc8e6cb8359f6877fe09085aad
ripemd-160	41cfc399b89479df840d3a499bf39f458ec83e95

72161821 as geometric shapes

Circle

Radius = n

Diameter	144323642
Circumference	453406093.44652
Area	1.6359304677799E+16

Sphere

Radius = n

Volume	1.5740229544584E+24
Surface area	6.5437218711195E+16
Circumference	453406093.44652

Square

Length = n

Perimeter	288647284
Area	5207328410036041
Diagonal	102052225.94374

Cube

Length = n

Surface area	31243970460216246
Volume	3.7577030061324E+23
Space diagonal	124987940.33869

Equilateral Triangle

Length = n

Perimeter	216485463
Area	2.2548393444698E+15
Altitude	62493970.169345

Triangular Pyramid

Length = n

Surface area	2.2548393444698E+15
Volume	4.4284954622021E+22
Height	34017408.647913