16061
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 14
- Digital Root
- 5
- Palindromic Number
- yes
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 2
- Divisor Sum
- 16062
- Proper Divisor Sum (Aliquot Sum)
- 1
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 16060
- Möbius Function
- -1
- Radical
- 16061
- Omega Function (Ω)
- 1
- Little Omega Function (ω)
- 1
Special
- Factorial
- no
- Catalan Number
- no
- Bell Number
- no
- Motzkin Number
- no
- Primorial
- no
Figurate Numbers
- Fibonacci Number
- no
- Triangular Number
- no
- Perfect Square
- no
- Perfect Cube
- no
- Pentagonal Number
- no
- Hexagonal Number
- no
- Lucas Number
- no
- Tetrahedral Number
- no
- Pell Number
- no
- Tribonacci Number
- no
- Pronic Number
- no
Recreational
- Happy Number
- no
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 45
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- yes
- Composite Number
- no
- Semiprime
- no
- Squarefree Number
- yes
- Prime Power
- yes
- Prime Factorization
- no
- Twin Prime
- yes
- Mersenne Prime
- no
- Sophie Germain Prime
- no
- Safe Prime
- no
- Powerful Number
- no
- Achilles Number
- no
- Prime Index
- 1867
- Perfect Power
- no
- Smooth Number
- no
- Carmichael Number
- no
Classification
- Even
- no
- Odd
- yes
Appears in sequences
- Palindromic primes: prime numbers whose decimal expansion is a palindrome.at n=35A002385
- Number of paraffins.at n=40A005999
- Prime quadruples: numbers k such that k, k+2, k+6, k+8 are all prime.at n=15A007530
- Initial members p of prime 5-tuples (p, p+2, p+6, p+8, p+12).at n=4A022006
- Initial terms of '4-block' primes as described in A032591.at n=23A032592
- Start of a string of exactly 2 consecutive (but disjoint) pairs of twin primes.at n=34A035790
- Primes whose consecutive digits differ by 5 or 6.at n=16A048417
- Palindromic primes containing no pair of consecutive equal digits.at n=30A050784
- Fourth term of strong prime quintets: p(m-2)-p(m-3) > p(m-1)-p(m-2) > p(m)-p(m-1) > p(m+1)-p(m).at n=36A054811
- Primes p whose period of reciprocal equals (p-1)/5.at n=31A056210
- McKay-Thompson series of class 24B for Monster.at n=28A058572
- Lesser of twin primes whose average is 6 times a prime.at n=38A060213
- Primes with 12 as smallest positive primitive root.at n=5A061325
- Primes which can be expressed as concatenation of powers of 6 and 0's.at n=19A066597
- Numbers k such that sigma(k+2) - sigma(k) = prime(k+1) - prime(k).at n=37A067062
- Primes which are the concatenation of numbers n_1, n_2, n_3, in that order, with n_1 + n_2 = n_3 (leading zeros are forbidden for nonzero n_i).at n=26A067860
- Numbers n such that phi(n) + sigma(n) = n + reversal(n).at n=36A069217
- Numbers n such that n and 2n+1 are both palindromes.at n=33A069881
- Palindromic primes with at least one zero digit.at n=4A071783
- Numbers n for which there are exactly seven k such that n = k + reverse(k).at n=28A072431