Properties of the Number -18839

Eighteen Thousand Eight Hundred Thirty-Nine

Basics

Value: -18840 → -18839 → -18838

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 18839

Divisors: 1, 18839

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100100110010111

Octal: -44627

Duodecimal: -AA9B

Hexadecimal: -4997

Square: 354907921

Square Root: 137.2552366942697

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

Balanced primes of order seven. A96699

Lower prime of a difference of 20 between consecutive primes. A31938

Numbers k such that A361338(k) = 10. A361349

Start of a run of consecutive primes of length n each ending with the same digit. A54681

Numbers k such that (11^k - 2^k)/9 is prime. A210506

Number of semi-lone-child-avoiding rooted trees with at most one distinct non-leaf branch directly under any vertex. A331933

Number of recursively anti-transitive rooted identity trees with n nodes. A324767

Primes q (except greater of twin primes) with result 2 under iterations of {r mod (max prime p < r)} starting at r = q. A175080

Primes P where the distance to the nearest prime is greater than 2·log(P). A330426

Prime numbers, isolated from neighboring primes by >14. A137874