Properties of the Number -22619

Twenty-Two Thousand Six Hundred Nineteen

Basics

Value: -22620 → -22619 → -22618

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 22619

Divisors: 1, 22619

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -101100001011011

Octal: -54133

Duodecimal: -1110B

Hexadecimal: -585b

Square: 511619161

Square Root: 150.39614356757954

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

Smallest prime p==3 (mod 8) such that Q(sqrt(-p)) has class number 2n+1. A2148

Least prime divisor of B(n) which does not divide any B(k) with k < n, or 1 if such a primitive prime divisor of B(n) does not exist, where B(n) is the n-th Bell number given by A000110. A242171

Primes p such that the number of distinct prime divisors of all composite numbers between p and the next prime is 5. A75585

Prime number spiral (clockwise, South spoke). A54566

Primes from merging of 5 successive digits in decimal expansion of Catalan's constant. A104919

Largest prime factor of n-th Bell number A000110(n) (or 1 if A000110(n) = 1). A144293

Primes p such that ∑_{k=PreviousPrime(p)..p} d(k) = ∑_{k=p..NextPrime(p)} d(k), where d(k) is the number of divisors function A000005. A353552

a(n) is the number of edges in the graph PG(n) with one node for each free n-celled polyiamond and edges between nodes corresponding to polyiamonds that can be obtained from each other by moving one cell, where the intermediate polyform (the set of cells remaining when the cell to be moved is detached) is not required to be a connected polyiamond. A389961

Numerator of coefficients of power series for exp(exp(x)-1). A76903

Positive integers i for which A112049(i) == 8. A112068