Properties of the Number 61275

Sixty-One Thousand Two Hundred Seventy-Five

Basics

Value: 61274 → 61275 → 61276

Parity: odd

Prime: No

Previous Prime: 61261

Next Prime: 61283

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 5 ² × 19 × 43

Divisors: 1, 3, 5, 15, 19, 25, 43, 57, 75, 95

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1110111101011011

Octal: 167533

Duodecimal: 2B563

Hexadecimal: ef5b

Square: 3754625625

Square Root: 247.53787588973125

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 partitions of n, with two kinds of 1, 2, 3 and 4. A710

Numbers k such that 4^k + 3 is prime. A89437

McKay-Thompson series of class 12H for the Monster group with a(0) = 4. A187091

Expansion of (1/q) * ((χ(q³) * χ(-q⁶)) / (χ(q) * χ(-q²)))⁴ in powers of q where χ() is a Ramanujan θ function. A193522

Numbers m such that 72·m + 1, 576·m + 1, 648·m + 1, 1296·m + 1, and 2592·m + 1 are all primes. A372187

McKay-Thompson series of class 12H for Monster. A58486

McKay-Thompson series of class 12H for the Monster group with a(0) = 5. A187198

Expansion of (1/q) * χ(-q) * χ(-q³) * χ(-q⁶)⁴ / χ(q)⁴ in powers of q where χ() is a Ramanujan θ function. A193557

Smaller of two consecutive primes whose sum is a square. A61275

Number of (n+1)X(3+1) arrays of permutations of 0..n·4+3 with each element having directed index change 0,0 0,1 1,0 -1,0 or 0,-2. A264212