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

21898981 (number)

21898981 is an odd 8-digits composite number following 21898980 and preceding 21898982. In scientific notation, it is written as 2.1898981 × 10^7. The sum of its digits is 46. It has a total of 2 prime factors and 4 positive divisors. There are 20214432 positive integers (up to 21898981) that are relatively prime to 21898981.

Interesting facts

21898981 has 4 divisors, whose sum is 23583532
The reverse of 21898981 is 18989812
Previous prime number is 13

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1

Name

Name	twenty-one million eight hundred ninety-eight thousand nine hundred eighty-one

Notation

Scientific notation	2.1898981 × 10^7
Engineering notation	2.1898981 × 10^6

Prime Factorization of 21898981

Prime Factorization 13 × 1684537

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21898981	Product of the distinct prime numbers

The prime factorization of 21898981 is 13 × 1684537. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 7, 7, 81, 696, 799, 6268, 278, 89961, 25668, 927911, 959483, 8200579, 4697012, 87238081, 68759341, 808271306, 14080148, 394049219, 1551566874

Basic calculations (n = 21898981)

Multiplication

n×y

n×2	43797962
n×3	65696943
n×4	87595924
n×5	109494905

Division

n÷y

n÷2	10949490.5
n÷3	7299660.3333333
n÷3	5474745.25
n÷5	4379796.2

Exponentiation

n^y

n²	479565368838361
n³	1.0501992900449E+22
n⁴	2.2998294298907E+29
n⁵	5.0363920988418E+36

Nth Root

^y√n

²√n	4679.634707966
³√n	279.77439735705
⁴√n	68.407855601283
⁵√n	29.382231850061

Divisors of 21898981

1, 13, 1684537, 21898981

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	-21898980	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 21898981 can be divided by 4 positive divisors. The sum of these divisors (counting 21898981) is 1, the average is 0.25.

Base conversion 21898981

Base	System	Value
2	Binary	1010011100010011011100101
3	Ternary	1112012120202101
4	Quaternary	1103202123211
5	Quinary	21101231411
6	Senary	2101212101
8	Octal	123423345
10	Decimal	21898981
12	Duodecimal	7401031
16	Hexadecimal	14e26e5
20	Vigesimal	6gh791
36	Base36	d1dd1

Cryptographic Hash Functions

md5	d422ba99fc3e757fb1702ea43584c05d
sha1	58ed33dfb359b188a60e8c8950058b442df0e03c
sha256	8a129b46c975784af33ff021081e7bbb956cd81df377b760de21e785640631a3
sha512	a2b059ee153a9c8a45080b51627e7319031684bf3ea1fdb4d2d0fd590e1c23285d98d51498dedfc6efdad90f7099c497c69e8a969c673dfbb63782081eac9447
ripemd-160	72fed0b0edbbb71830214d5a84758480b6be2727

21898981 as geometric shapes

Circle

Radius = n

Diameter	43797962
Circumference	137595355.6614
Area	1.5065990396587E+15

Sphere

Radius = n

Volume	4.3990644992138E+22
Surface area	6.0263961586347E+15
Circumference	137595355.6614

Square

Length = n

Perimeter	87595924
Area	479565368838361
Diagonal	30969835.932351

Cube

Length = n

Surface area	2877392213030166
Volume	1.0501992900449E+22
Space diagonal	37930147.725985

Equilateral Triangle

Length = n

Perimeter	65696943
Area	2.0765789609464E+14
Altitude	18965073.862993

Triangular Pyramid

Length = n

Surface area	2.0765789609464E+14
Volume	1.2376717326468E+21
Height	10323278.644117