Properties of the Number 66846

Sixty-Six Thousand Eight Hundred Forty-Six

Basics

Value: 66845 → 66846 → 66847

Parity: even

Prime: No

Previous Prime: 66841

Next Prime: 66851

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 13 × 857

Divisors: 1, 2, 3, 6, 13, 26, 39, 78, 857, 1714

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000010100011110

Octal: 202436

Duodecimal: 32826

Hexadecimal: 1051e

Square: 4468387716

Square Root: 258.5459340233375

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

Index of first occurrence of exactly n consecutive threes in a row in the decimal expansion of π. A96757

Expansion of ∏_k>=1 ((1 + x^2·k-1) / (1 - x^2·k-1))^k. A292037

Starting positions of strings of four 3's in the decimal expansion of π. A83611

Number of nondecreasing arrangements of n numbers in -8..8 with sum zero and sum of squares less than n·72/3. A183934

T(n,k)=Number of nondecreasing arrangements of n numbers in -k..k with sum zero and sum of squares less than n·k*(k+1)/3. A183935

Numbers such that n divides A260519(n), where A260519(n) is the concatenation of the positions of the digits 0, 1, ..., 9 in n, positions counted from the right, and 0 if a given digit does not occur. A260385

Numbers of the form a^a + b^b, a >= b > 0. A66846