Properties of the Number 11969

Eleven Thousand Nine Hundred Sixty-Nine

Basics

Value: 11968 → 11969 → 11970

Parity: odd

Prime: Yes

Previous Prime: 11959

Next Prime: 11971

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 11969

Divisors: 1, 11969

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10111011000001

Octal: 27301

Duodecimal: 6B15

Hexadecimal: 2ec1

Square: 143256961

Square Root: 109.40292500660117

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

Centered 4-dimensional orthoplex numbers (crystal ball sequence for 4-dimensional cubic lattice). A1846

Primes of the form 43·n² - 537·n + 2971 in order of increasing nonnegative values of n. A272285

Expansion of (1 + x)¹¹ / (1 - x)¹². A240876

Primes p such that the number of distinct prime divisors of all composite numbers between p and the next prime is 5. A75585

Recursive prime generating sequence. A39726

Primes p such that A001175(p) = (p-1)/4. A308789

Partial sums of sequence (essentially A002378): 1, 2, 6, 12, 20, 30, 42, 56, 72, 90, ... A64999

Primes p such that A001177(p) = (p-1)/8. A308801

Primes having only {1, 6, 9} as digits. A363023

a(1) = 2; a(n) is the smallest prime > a(n-1) such that a(n) + a(n-1) is a square. A62064