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Properties of the Number 19979

Nineteen Thousand Nine Hundred Seventy-Nine

Basics

Value: 19978 → 19979 → 19980

Parity: odd

Prime: Yes

Previous Prime: 19973

Next Prime: 19991

Digit Sum: 35

Digital Root: 8

Palindrome: No

Factorization: 19979

Divisors: 1, 19979

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100111000001011

Octal: 47013

Duodecimal: B68B

Hexadecimal: 4e0b

Square: 399160441

Square Root: 141.3470905254155

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

Primes p such that p's set of distinct digits is {1,7,9}. A108384
Primes with integer arithmetic mean of digits = 7 in base 10. A285227
Primes with digit sum = 35. A106770
Primes related to the nondecreasing subsequence of A007605 (sums of digits of primes). A67954
a(n) = first prime of the A342444(n) consecutive primes summing to A342443(n). A342454
Primes of the form 666·k - 1. A63472
Primes with all odd digits such that the next three primes also contain all odd digits. A68831
Prime(n) and prime(n+3) use the same digits. A69795
Positive integers i for which A112049(i) == 9. A112069
Prime numbers p such that 0 < π(p;10,(9,1)) = π(p;10,(3,9)) where π(x;q,(a,b)) is the number of primes pn <= x such that pn == a (mod q) and pn+1 == b (mod q). A326897