202
domain: N
Properties
Digital Properties
- Digit Count
- 3
- Digit Sum
- 4
- Digital Root
- 4
- Palindromic Number
- yes
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 306
- Proper Divisor Sum (Aliquot Sum)
- 104
- 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
- 100
- Möbius Function
- 1
- Radical
- 202
- 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
- 26
- Smith Number
- yes
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
- yes
- Odd
- no
Names
- German
- zweihundertzwei· ordinal: zweihundertzweiste
- English
- two hundred two· ordinal: two hundred second
- Spanish
- doscientos dos· ordinal: 202º
- French
- deux cent deux· ordinal: deux cent deuxième
- Italian
- duecentodue· ordinal: 202º
- Latin
- ducenti duo· ordinal: 202.
- Portuguese
- duzentos e dois· ordinal: 202º
Appears in sequences
- Number of binary partitions: number of partitions of 2n into powers of 2.at n=16A000123
- Number of connected graphs with one cycle of length 4.at n=6A000368
- n written in base where place values are positive cubes.at n=56A000433
- Nearest integer to sinh(n).at n=6A000495
- Number of partitions of n in which no parts are multiples of 3.at n=20A000726
- Number of n-gons with n vertices.at n=5A000940
- Winning moves in Fibonacci nim.at n=34A001581
- 2 together with primes multiplied by 2.at n=26A001747
- Beatty sequence of (5+sqrt(13))/2.at n=46A001956
- v-pile positions of the 4-Wythoff game with i=3.at n=38A001968
- Numbers congruent to {2, 4, 8, 16} (mod 20).at n=40A002081
- Palindromes in base 10.at n=29A002113
- Numbers k such that 15*2^k - 1 is prime.at n=17A002237
- Squares written in base 7.at n=9A002440
- Nearest integer to cosh(n).at n=6A002459
- Numbers of form x^2 + 6y^2.at n=62A002481
- a(n) = Sum_{k=1..n-1} floor((n-k)/k).at n=60A002541
- Number of partitions of 2^n into powers of 2.at n=5A002577
- Numbers k such that (k^2 + k + 1)/3 is prime.at n=32A002640
- a(n) = Sum_{d|n, d <= 3} d^2 + 3*Sum_{d|n, d>3} d.at n=66A002660