Properties of the Number 7648

Seven Thousand Six Hundred Forty-Eight

Basics

Value: 7647 → 7648 → 7649

Parity: even

Prime: No

Previous Prime: 7643

Next Prime: 7649

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 ⁵ × 239

Divisors: 1, 2, 4, 8, 16, 32, 239, 478, 956, 1912

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1110111100000

Octal: 16740

Duodecimal: 4514

Hexadecimal: 1de0

Square: 58491904

Square Root: 87.45284443630179

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 subsets of {1..n} with a subset summing to n. A365376

Numbers k such that φ(x) = k has exactly 12 solutions. A60675

T(n,k)=Number of (n+1)X(k+1) 0..6 arrays with the permanents of all 2X2 subblocks equal and nonzero. A205046

9-step Fibonacci sequence starting with 0,0,0,1,0,0,0,0,0. A251750

Coefficients in the expansion of C⁷/B⁸, in Watson's notation of page 106. A160521

Exponents m such that the decimal expansion of 3^m exhibits its first zero from the right later than any previous exponent. A239008

Glaisher's chi₈(n). A2607

Cascadence of (1+2x)²; a triangle, read by rows of 2n+1 terms, that retains its original form upon convolving each row with [1,4,4] and then letting excess terms spill over from each row into the initial positions of the next row such that only 2n+1 terms remain in row n for n>=0. A120914

Number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 355", based on the 5-celled von Neumann neighborhood. A271397

Monotonic ordering of nonnegative differences 6ⁱ-2^j, for 40>=i>=0, j>=0. A192117