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Properties of the Number 12907

Twelve Thousand Nine Hundred Seven

Basics

Value: 12906 → 12907 → 12908

Parity: odd

Prime: Yes

Previous Prime: 12899

Next Prime: 12911

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 12907

Divisors: 1, 12907

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 11001001101011

Octal: 31153

Duodecimal: 7577

Hexadecimal: 326b

Square: 166590649

Square Root: 113.6089785184252

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

Toothpick primes: primes in the toothpick sequence A139250. A139253
Initial term in sequence of four consecutive primes separated by 3 consecutive differences each <=6 (i.e., when d=2,4 or 6) and forming d-pattern=[4, 6, 2]; short d-string notation of pattern = [462]. A78851
Bases b where exactly seven primes p with p < b exist such that p is a base-b Wieferich prime. A325883
Primes in A126554. A126555
Form a triangle with the numbers [0..n] on the base, where each number is the sum of the two below; a(n) is the number of different possible values for the apex. A66411
Index of n-th prime in A386482, or -1 if that prime is missing. A386483
5-Ramanujan primes; the interval (x/2,x] has at least n 4-Ramanujan primes for x >= a(n) but not for x = a(n)-1. A192823
Decimal expansion of the number 29.000694926917980144237135814... having continued fraction expansion 29, 1439, 4211, 7703, 12907, 14957, ... (A126555). A127558
Triangle T(n, k) = Numbers of inequivalent (mod D3) ways to place k points on a triangular grid of side n so that no three of them are vertices of an equilateral triangle with sides parallel to the grid. Triangle read by rows. A243207
Discriminants of imaginary quadratic fields with class number 17 (negated). A46014