Properties of the Number -19972

Nineteen Thousand Nine Hundred Seventy-Two

Basics

Value: -19973 → -19972 → -19971

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 2 ² × 4993

Divisors: 1, 2, 4, 4993, 9986, 19972

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100111000000100

Octal: -47004

Duodecimal: -B684

Hexadecimal: -4e04

Square: 398880784

Square Root: 141.3223266154361

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

Y-coordinates of the lower envelope of A373330. A373332

a(n) is the number of regions formed by n-secting the angles of a heptagon. A335757

Positions of records in A336830. A362399

Expansion of 2·x*(6 +59·x +257·x² - 294·x³ -128·x⁴)/((1-x)*(1+x)*(1-2·x)*(1+3·x)*(1-4·x)). A120657

Numbers n such that 1 + 46* ∑_k=1..n 100^k-1 is prime. A254002

Number of prime parts in the partitions of n into 10 parts. A309439

Expansion of ∏_k>=1 1/(1 - x^k)^{2^ω(k}), where ω(k) = number of distinct primes dividing k (A001221). A319130

Numbers n such that A = n + digitsum(n) is divisible by the highest power of 10 <= A. A242799

Numbers k such that 5^k - 32 is prime. A386619