Properties of the Number 69912

Sixty-Nine Thousand Nine Hundred Twelve

Basics

Value: 69911 → 69912 → 69913

Parity: even

Prime: No

Previous Prime: 69911

Next Prime: 69929

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 ³ × 3 ² × 971

Divisors: 1, 2, 3, 4, 6, 8, 9, 12, 18, 24

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001000100011000

Octal: 210430

Duodecimal: 34560

Hexadecimal: 11118

Square: 4887687744

Square Root: 264.4087744383684

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

a(n) = (Sum{k=0..n-1} a(k)) - a(n-3), with a(0)=0, a(1)=0, a(2)=1. A49856

Numbers whose base-4 representation has exactly 9 runs. A43600

Numbers k such that number of runs in the base 4 representation of k is congruent to 0 mod 9. A43858

Numbers k such that number of runs in the base 4 representation of k is congruent to 9 mod 10. A43876

a(n) = a(n-1) - 81·a(n-2), a(0)=1, a(1)=9. A133672

Numbers k such that number of runs in the base 4 representation of k is congruent to 1 mod 8. A43851

Sum of digits of n². A4159

Numbers with digital root 1, 4, 7 or 9. A56991

Complement of A056991. A268226

a(n) = A067552(n)/9 where A067552(n) = SumOfDigits(n)² - SumOfDigits(n²), with SumOfDigits = A007953. A69912