Properties of the Number 30869

Thirty Thousand Eight Hundred Sixty-Nine

Basics

Value: 30868 → 30869 → 30870

Parity: odd

Prime: Yes

Previous Prime: 30859

Next Prime: 30871

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 30869

Divisors: 1, 30869

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111100010010101

Octal: 74225

Duodecimal: 15A45

Hexadecimal: 7895

Square: 952895161

Square Root: 175.6957597667058

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

Smaller of twin primes whose middle term is a multiple of A002110(4)=210. A60230

a(1) = 13, a(n) is smallest prime of the form k·a(n-1) + 1. A214523

Partial sums of A027964. A53298

Primes q = 4·p+1, where p == 2 (mod 5) is also prime. A221981

Number of integer partitions of n whose run-sums are not weakly increasing. A357865

First term of weak prime sextet: p(m+1)-p(m) < p(m+2)-p(m+1) < p(m+3)-p(m+2) < p(m+4)-p(m+3) < p(m+5)-p(m+4). A54828

Expansion of ∏_k>=0 1/(1-x^5·k+1)^5·k+1. A285049

Primes in A073837. A341632

Primes p such that 7 is the largest of all prime factors of the numbers between p and the next prime (cf. A052248). A80186

a(n) = 70·n² - 1. A158736