Properties of the Number 7257

Seven Thousand Two Hundred Fifty-Seven

Basics

Value: 7256 → 7257 → 7258

Parity: odd

Prime: No

Previous Prime: 7253

Next Prime: 7283

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 41 × 59

Divisors: 1, 3, 41, 59, 123, 177, 2419, 7257

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1110001011001

Octal: 16131

Duodecimal: 4249

Hexadecimal: 1c59

Square: 52664049

Square Root: 85.18802732778826

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} containing all of their pairwise sums <= n. A326083

Numbers whose binary expansion generates rotationally symmetric XOR-triangles. A334556

T(n,k)=Number of length n+2 0..k arrays with the sum of medians of adjacent triples multiplied by some arrangement of +-1 equal to zero. A253129

a(n) is the first of a triple of consecutive integers, each of which is the product of three distinct primes. A66509

Total number of congruence subgroups of PSL(2,Z) of genus n. A258691

Sets of 4 consecutive numbers with equal number of divisors. A39665

Sum of odd-indexed primes. A77131

T(n,k)=Number of nXk 0..1 arrays with no 1 equal to more than two of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly two elements. A283386

Odd integers that do not generate monotonically decreasing infinitary aliquot sequences. A127667

Expansion of x³*(5-2·x)*(1-x³)/(1-x)⁴. A338