Properties of the Number 61215

Sixty-One Thousand Two Hundred Fifteen

Basics

Value: 61214 → 61215 → 61216

Parity: odd

Prime: No

Previous Prime: 61211

Next Prime: 61223

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 5 × 7 × 11 × 53

Divisors: 1, 3, 5, 7, 11, 15, 21, 33, 35, 53

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1110111100011111

Octal: 167437

Duodecimal: 2B513

Hexadecimal: ef1f

Square: 3747276225

Square Root: 247.41665263276036

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

Beginning of a run of 4 consecutive Niven (or Harshad) numbers. A141769

Odd unitary abundant numbers. A129485

Odd squarefree abundant numbers. A112643

Primitive, odd, squarefree abundant numbers. A249263

Odd numbers with exactly 5 distinct prime factors. A46391

Number of partitions of n such that m(greatest part) < m(1), where m = multiplicity. A240076

Squarefree primitive abundant numbers (first definition: having only deficient proper divisors). A298973

Odd numbers k such that A360522(k) > 2·k. A360526

Odd non-coreful abundant numbers: the odd terms of A308127. A339938

Odd nonexponential abundant numbers: odd numbers k such that A160135(k) > k. A348605