10090
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 10
- Digital Root
- 1
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 18180
- Proper Divisor Sum (Aliquot Sum)
- 8090
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 4032
- Möbius Function
- -1
- Radical
- 10090
- Omega Function (Ω)
- 3
- Little Omega Function (ω)
- 3
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
- yes
- Harshad Number
- yes
- Narcissistic Number
- no
- Collatz Steps
- 42
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- no
- 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
- yes
- Odd
- no
Appears in sequences
- Numbers k such that k^2 + 1 is a palindrome.at n=11A027719
- Numbers having three 0's in base 10.at n=26A043491
- Numbers k such that 3 + (integer formed from first k digits after decimal point in Pi) is prime.at n=7A058941
- Ooguri-Vafa invariants of disk degeneracies for brane III in the O(K) -> P^1 x P^1 geometry.at n=11A092718
- Numbers k such that the k-th triangular number contains only digits {0,5,9}.at n=7A119086
- Numbers k such that k and k^2 use only the digits 0, 1, 2, 8 and 9.at n=52A136835
- Numbers k such that k and k^2 use only the digits 0, 1, 3, 8 and 9.at n=40A136852
- Numbers k such that k and k^2 use only the digits 0, 1, 4, 8 and 9.at n=30A136867
- Numbers k such that k and k^2 use only the digits 0, 1, 5, 8 and 9.at n=23A136874
- Numbers k such that k and k^2 use only the digits 0, 1, 6, 8 and 9.at n=23A136879
- Numbers k such that k and k^2 use only the digits 0, 1, 7, 8 and 9.at n=23A136880
- Numbers k such that k and k^2 use only the digits 0, 1, 8 and 9.at n=23A136881
- Numbers k such that the sum of the decimal digits of k is a substring of k, of k^2 and of k^3.at n=39A162017
- Partial sums of economical numbers A046759.at n=13A172460
- Expansion of 1/(1-x^2-x^3+x^7-x^8+x^10).at n=43A174577
- Numbers n with k digits such that each sum of 1, 2, ..., k digits of n is a substring of n.at n=44A202272
- Composite numbers n with k digits such that each sum of 1 to k digits of n is substring of n.at n=35A205530
- Number of partitions p of n not containing ceiling((min(p) + max(p))/2) as a part.at n=34A238485
- Number of partitions p = [x(1), ..., x(k)], where x(1) >= x(2) >= ... >= x(k), of n such that min(x(i) - x(i-1)) <= number of distinct parts of p.at n=33A241824
- Numbers n such that the smallest prime divisor of n^2+1 is 101.at n=34A248553