Properties of the Number 64019

Sixty-Four Thousand Nineteen

Basics

Value: 64018 → 64019 → 64020

Parity: odd

Prime: Yes

Previous Prime: 64013

Next Prime: 64033

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 64019

Divisors: 1, 64019

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111101000010011

Octal: 175023

Duodecimal: 3106B

Hexadecimal: fa13

Square: 4098432361

Square Root: 253.01976207403246

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

Maximum fixed points under iteration of sum of cubes of digits in base n. A226026

Numbers k such that the k-th composite number divides the sum of the first k composite numbers. A330579

Primes that are anagrams of Fibonacci numbers. A162390

Primes p of the form a²-b² and p·a-b is also prime (with b=prime and a=b+1). A173875

Primes p such that 5·p+6, 5·p+12, 5·p+18 and 5·p+24 are all primes. A355577

Numbers k such that sopf(k) = sopf(k² - 1), where sopf(k) = A008472(k). A64019

Number of (n+1)X(5+1) 0..1 arrays with no 2X2 subblock having the maximum of its diagonal elements greater than the absolute difference of its antidiagonal elements. A251314