Properties of the Number 11979

Eleven Thousand Nine Hundred Seventy-Nine

Basics

Value: 11978 → 11979 → 11980

Parity: odd

Prime: No

Previous Prime: 11971

Next Prime: 11981

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 11 ³

Divisors: 1, 3, 9, 11, 33, 99, 121, 363, 1089, 1331

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10111011001011

Octal: 27313

Duodecimal: 6B23

Hexadecimal: 2ecb

Square: 143496441

Square Root: 109.4486180817282

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 of the form p² * q³, where p,q are distinct primes. A143610

Numbers of the form 3ⁱ*11^j. A3597

Partial sums of A001158: ∑_j=1..n sigma₃(j). A64603

Numbers of the form (9ⁱ)*(11^j), with i, j >= 0. A108687

Numbers that are the product of distinct primes with prime subscripts raised to prime powers. A346068

a(n) = 11·n². A33584

a(1) = 1, a(n) = smallest (nontrivial) multiple of a(n-1) containing n digits, a(n) not equal to 10·a(n-1). A80445

Numbers which are the sum of two positive cubes and divisible by 11. A101852

Powerful numbers whose prime indices are all prime numbers. A352492

Numbers whose prime factorization exponents include at least one 2, at least one 3 and no other exponents. A375073