Properties of the Number 8980

Eight Thousand Nine Hundred Eighty

Basics

Value: 8979 → 8980 → 8981

Parity: even

Prime: No

Previous Prime: 8971

Next Prime: 8999

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 ² × 5 × 449

Divisors: 1, 2, 4, 5, 10, 20, 449, 898, 1796, 2245

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: 10001100010100

Octal: 21424

Duodecimal: 5244

Hexadecimal: 2314

Square: 80640400

Square Root: 94.76286192385707

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Numbers n such that Bernoulli number B_n has denominator 330. A272183

T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 1 2 5 6 or 7 and every 3X3 column and antidiagonal sum not equal to 1 2 5 6 or 7. A252574

Difference between larger and smaller terms of n-th amicable pair. A66539

a(n) = 8·n² + 8·n + 4. A108099

Second 13-gonal numbers: a(n) = n*(11·n+9)/2. A211013

a(n) + a(n+1) + a(n+2) = n³. A152728

Digitally balanced numbers in base 6: equal numbers of 0's, 1's, ..., 5's. A49357

Numbers k such that k | sigma₇(k). A55711

Numbers k such that the first k binary digits of π expressed in decimal forms a prime. A65987

Expansion of 1 / ∏_n>=0 (1 - q⁵ⁿ⁺¹)*(1 - q⁵ⁿ⁺³)*(1 - q⁵ⁿ⁺⁴). A107236