Properties of the Number 7622

Seven Thousand Six Hundred Twenty-Two

Basics

Value: 7621 → 7622 → 7623

Parity: even

Prime: No

Previous Prime: 7621

Next Prime: 7639

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 × 37 × 103

Divisors: 1, 2, 37, 74, 103, 206, 3811, 7622

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1110111000110

Octal: 16706

Duodecimal: 44B2

Hexadecimal: 1dc6

Square: 58094884

Square Root: 87.3040663428686

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

Arrays of dumbbells. A2941

Numbers k such that σ(φ(k))-φ(σ(k)) is nonzero and divisible by φ(k), that is A065395(k)/A000010(k) is a nonzero integer. A92587

Total number of parts in all partitions of n into relatively prime parts. A85410

Shifts left under XOR-convolution: a(n) = ∑_k=0..n-1 a(k) XOR a(n-k-1) for n>1 with a(0)=1, a(1)=2. A192484

Fibonacci-like numbers with nonincreasing positive digits. Let a** denote the number that is obtained from a if its digits are written in nonincreasing order. Let a<+>b = (a + b)**. a(0)=0, a(1)=1, for n>=2, a(n) = a(n-1) <+> a(n-2). A237575

Number of asymmetric rooted 2,3 cacti (triangular cacti with bridges). A91488

a(n) = ∑_k=1..n k·rad(k). A350996

Denominators of continued fraction convergents to sqrt(124). A41225

Number of isomorphism classes of smooth toric Fano n-folds (or, equivalently, regular Fano n-topes). A140296

Sum of odd quadratic residues of prime(n). A232505