Properties of the Number 61248

Sixty-One Thousand Two Hundred Forty-Eight

Basics

Value: 61247 → 61248 → 61249

Parity: even

Prime: No

Previous Prime: 61231

Next Prime: 61253

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 ⁶ × 3 × 11 × 29

Divisors: 1, 2, 3, 4, 6, 8, 11, 12, 16, 22

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1110111101000000

Octal: 167500

Duodecimal: 2B540

Hexadecimal: ef40

Square: 3751317504

Square Root: 247.4833327721283

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

Non-palindromes in A110751; that is, non-palindromic numbers n such that n and R(n) have the same prime divisors, where R(n) = digit reversal of n. A110819

Least sum (n+1) + (n+2) + ... + (n+k) that is a multiple of the n-th triangular number, n(n+1)/2. A110351

a(n) = 2662·n + 22. A157613

θ series of direct sum of 2 copies of 4-dimensional lattice QQF.4.i. A212817

Number of n X 6 0..1 arrays with no element equal to more than one of its horizontal and vertical neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards. A280438

Number of n-digit base-4 deletable primes. A96237

Reversible Lynch-Bell numbers. A117954

a(n) = number of nonempty subsets of {1,2,...,n} having a partition into two subsets with the same sum of elements. A357212

Primes at which sum of digits strictly increases. A61248

Square array T(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where T(n,0) = 0ⁿ and T(n,k) = k * ∑_r=0..n binomial(n,r) * binomial(n+2·r+k,n)/(n+2·r+k) for k > 0. A378236