5755
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 22
- Digital Root
- 4
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 6912
- Proper Divisor Sum (Aliquot Sum)
- 1157
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 4600
- Möbius Function
- 1
- Radical
- 5755
- Omega Function (Ω)
- 2
- Little Omega Function (ω)
- 2
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
- 54
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- yes
- Squarefree Number
- yes
- Prime Power
- no
- Prime Factorization
- no
- Twin Prime
- no
- Mersenne Prime
- no
- Sophie Germain Prime
- no
- Safe Prime
- no
- Powerful Number
- no
- Achilles Number
- no
- Perfect Power
- no
- Smooth Number
- no
- Carmichael Number
- no
Classification
- Even
- no
- Odd
- yes
Appears in sequences
- Expansion of 1/((1-x)(1-10x)(1-12x)).at n=3A016267
- Numbers k such that the continued fraction for sqrt(k) has period 60.at n=23A020399
- Lucky numbers with size of gaps equal to 18 (upper terms).at n=30A031901
- Composite numbers whose prime factors contain no digits other than 1 and 5.at n=14A036305
- Numbers having three 5's in base 10.at n=29A043511
- Numbers k such that 7*2^k + 5 is prime.at n=16A058595
- Integer part of log(n^n)^(1 + log(n)).at n=7A062477
- Composite and every divisor (except 1) contains the digit 5.at n=40A062672
- Sum of the digits of the n-th Mersenne prime (A000668).at n=18A066538
- Expansion of (1-x)^(-1)/(1-2*x-2*x^2-2*x^3).at n=8A077827
- Duplicate of A077827.at n=8A077844
- Number of primes between n^2 and n^3.at n=39A079648
- Number of partitions of n into parts free of odd octagonal (star) numbers: k(3k-2) and the only number with multiplicity in the unrestricted partitions is the number 2 with multiplicity of the form :4k+2l, k a positive integer and l=0,1.at n=56A100928
- Near-repdigit semiprimes with 5 as repeated digit.at n=23A105986
- Central coefficients of number triangle A119326.at n=8A119359
- a(0)=1. a(n) = sum{k=0 to n-1} a(a(k)(mod n)).at n=18A125952
- Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 1), (0, 1, 1), (1, 0, 1), (1, 1, -1), (1, 1, 0)}.at n=6A151207
- Numbers k with the property that the average digit of k^2 is 2.at n=38A164770
- Semiprimes whose decimal representation has only digits in {4,5,7}.at n=25A217124
- Minimum value unattainable as the sum of 7 attained values of i^2 with i in 0..n.at n=30A225280