Properties of the Number 85844

Eighty-Five Thousand Eight Hundred Forty-Four

Basics

Value: 85843 → 85844 → 85845

Parity: even

Prime: No

Previous Prime: 85843

Next Prime: 85847

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 2 ² × 11 × 1951

Divisors: 1, 2, 4, 11, 22, 44, 1951, 3902, 7804, 21461

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

603 Try Today's Challenge

Representations

Binary: 10100111101010100

Octal: 247524

Duodecimal: 41818

Hexadecimal: 14f54

Square: 7369192336

Square Root: 292.9914674525523

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 no element unequal to a strict majority of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards. A281765

The number of palindromic primes leading and ending with 1, 3, 7 or 9 -- in sequence -- of length 2·ceiling(n/4)+1. A220248

Number of nX6 0..1 arrays with no element unequal to a strict majority of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards. A281763

Number of 5Xn 0..1 arrays with no element unequal to a strict majority of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards. A281769

Numbers equal to a permutation (or rearrangement) of the digits of the sum of their proper divisors. Rearrangements which cause leading zeros are excluded. A85844