Properties of the Number -7258

Two Hundred Fifty-Eight

Basics

Value: -7259 → -7258 → -7257

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 × 19 × 191

Divisors: 1, 2, 19, 38, 191, 382, 3629, 7258

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1110001011010

Octal: -16132

Duodecimal: -424A

Hexadecimal: -1c5a

Square: 52678564

Square Root: 85.19389649499546

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

INVERT transform of A055615, n*μ(n). A144028

Triangle read by rows: T(n,k) is the number of unsensed combinatorial maps with n edges and genus k, 0 <= k <= floor(n/2). A379439

Numbers n such that the decimal expansions of both n and n² have 2 as smallest digit and 8 as largest digit. A257368

Sphenic numbers (A007304) whose neighbors are sphenic. A248202

Number of unsensed genus 4 maps with n edges. A297880

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

a(n) = n*(5·n+1). A202803

a(n) = 3·n*(3·n + 7)/2 + 4. A283394

First of two complementary trees generated by the triangular numbers. The second tree is A183232. A183231

a(n) = 57·2^n-1 - 38 (n >= 1). A304513