Properties of the Number 61111

Sixty-One Thousand One Hundred Eleven

Basics

Value: 61110 → 61111 → 61112

Parity: odd

Prime: No

Previous Prime: 61099

Next Prime: 61121

Digit Sum: 10

Digital Root: 1

Palindrome: No

Factorization: 23 × 2657

Divisors: 1, 23, 2657, 61111

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1110111010110111

Octal: 167267

Duodecimal: 2B447

Hexadecimal: eeb7

Square: 3734554321

Square Root: 247.20639150313247

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

T(n,k)=Number of nXk 0..1 arrays with every element unequal to 0, 1, 2, 3, 5 or 7 king-move adjacent elements, with upper left element zero. A305776

Semiprimes for which both the sum and the product of the digits is also a semiprime. A118690

Near-repunit semiprimes. A105993

Triangle read by rows: row n lists partitions of n-th triangular number into triangular parts. A114738

a(n) is the least semiprime > a(n-1) whose digits do not appear in a(n-1). A131220

Composite numbers whose product of digits is 6. A201055

Number of n X 3 0..1 arrays with every element unequal to 0, 1, 2, 3, 5 or 7 king-move adjacent elements, with upper left element zero. A305771

Number of minimal edge cuts in the n-antiprism graph. A378922

a(n) = ∑_k=0..n p(k) where p(k) = number of partitions of k (A000041). A70

Number of partitions of n into even parts. A35363