Properties of the Number 61616

Sixty-One Thousand Six Hundred Sixteen

Basics

Value: 61615 → 61616 → 61617

Parity: even

Prime: No

Previous Prime: 61613

Next Prime: 61627

Digit Sum: 20

Digital Root: 2

Palindrome: Yes

Factorization: 2 ⁴ × 3851

Divisors: 1, 2, 4, 8, 16, 3851, 7702, 15404, 30808, 61616

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111000010110000

Octal: 170260

Duodecimal: 2B7A8

Hexadecimal: f0b0

Square: 3796531456

Square Root: 248.22570374560325

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 whose consecutive digits differ by 5. A48407

Base-10 palindromes that start with 6. A43041

Analog of A097717 in base 3. A249597

Largest palindromic substring in 5ⁿ. A46263

Smallest palindromic multiple of (n with trailing 0's omitted, A004151) using only nonzero digits of n; all digits must appear; or 0 if no such number exists. A83960

Smallest palindromic multiple of n in which the digit string of n appears as sandwiched between at least a pair of digits, or 0 if n = 10k or no such number exists. A84043

Biquadrateful (i.e., not biquadrate-free) palindromes. A133514

Number of active (ON, black) cells at stage 2ⁿ-1 of the two-dimensional cellular automaton defined by "Rule 326", based on the 5-celled von Neumann neighborhood. A271260

Ooguri-Vafa invariants of disk domain wall degeneracies for brane I in the O(K) -> P¹ X P¹ geometry. A61616