Properties of the Number 19697

Nineteen Thousand Six Hundred Ninety-Seven

Basics

Value: 19696 → 19697 → 19698

Parity: odd

Prime: Yes

Previous Prime: 19687

Next Prime: 19699

Digit Sum: 32

Digital Root: 5

Palindrome: No

Factorization: 19697

Divisors: 1, 19697

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 100110011110001

Octal: 46361

Duodecimal: B495

Hexadecimal: 4cf1

Square: 387971809

Square Root: 140.34600101178515

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

Numbers k such that (14^k - 1)/13 is prime. A6032

Primes in which the digit string can be partitioned into three parts such that the sum of the first two is equal to the third, and the second part is nonzero. A88291

Primes with digit sum = 32. A106768

a(n) is the cardinality of the "Cross Set" which is the subset of distinct resistances that can be produced by a circuit of n unit resistors using only series or parallel combinations which cannot be decomposed as a single unit resistor in either series or parallel with a circuit of n-1 unit resistors. A176497

a(n) = smallest prime > a(n-1) such that a(n)+a(n-1) is multiple of k, a(1)=2, k=101. A178468

Primes which are the concatenation of numbers n₁, n₂, n₃, in that order, with n₁ + n₂ = n₃ (leading zeros are forbidden for nonzero n_i). A67860

Primes of the form 3^k + 14. A102874

Lesser of twin primes (A001359) such that both are full reptend primes (A001913). A243096

Subtract 1 from the terms of A256407. A256410

Expansion of 1/((1-x)*(1-x²)²*(1-x³)*(1-x⁴)*(1-x⁵)). A1994