Properties of the Number 7522

Seven Thousand Five Hundred Twenty-Two

Basics

Value: 7521 → 7522 → 7523

Parity: even

Prime: No

Previous Prime: 7517

Next Prime: 7523

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 × 3761

Divisors: 1, 2, 3761, 7522

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 1110101100010

Octal: 16542

Duodecimal: 442A

Hexadecimal: 1d62

Square: 56580484

Square Root: 86.7294644281861

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

Triangle read by rows: T(n,k) gives the number of ballot sequences of length n having k largest parts, n >= k >= 0. A238123

Beach-Williams Pell numbers of type 2p (p prime). A212074

T(n,k)=Number of nXk 0..1 arrays with every element equal to 1, 2, 3, 5 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. A301354

Number of ballot sequences of length n having exactly 1 largest part. A238124

Let (u1,u2) be successive untouchable numbers such that φ(u1) = φ(u2); sequence gives values of u1. A48189

a(n) = 2·a(n-1) + prime(n) - prime(n-1), a(1)=2, where prime(n) denotes the n-th prime. A125180

Sum over all partitions of n into distinct parts of the bitwise XOR of the parts. A306925

Number of solutions to x² + y² + z² + w² <= n², where x, y, z, w are positive odd integers. A349611

Total number of increasing runs in all heapable permutations of length n. A389256

Expansion of ψ(x³)² / f(-x²) in powers of·where ψ(), f() are Ramanujan θ functions. A97196