Properties of the Number 61249

Sixty-One Thousand Two Hundred Forty-Nine

Basics

Value: 61248 → 61249 → 61250

Parity: odd

Prime: No

Previous Prime: 61231

Next Prime: 61253

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 23 × 2663

Divisors: 1, 23, 2663, 61249

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1110111101000001

Octal: 167501

Duodecimal: 2B541

Hexadecimal: ef41

Square: 3751440001

Square Root: 247.48535310195632

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

Number of biquanimous subsets of {1..n}. Sets with a subset having the same sum as the complement. A371791

a(n) = 128·n² + 2528·n + 12481. A157436

Principal diagonal of the convolution array A213838. A213839

a(n) = (1+sqrt(3))ⁿ + (-2)ⁿ + (1-sqrt(3))ⁿ + 1. A215502

Denominators of continued fraction convergents to sqrt(434). A41827

a(n) = 128·n² - 32·n + 1. A157331

a(n) = 50·n² - 1. A157919

Strong pseudoprimes to base 72. A20298

Smallest number with digit sum = Fibonacci(n). A61249