200 (number)

200 Armenian Մ Hebrew ר Babylonian cuneiform 𒐗⟪ Egyptian hieroglyph 𓍣 200 (two hundred) is the natural number following 199 and preceding 201. In mathematics 200 is an abundant number,A005101 - OEIS https://oeis.org/A005101 2026-06-17 oeis.org as 265, the sum of its proper divisors, is greater than itself.Weisstein Eric W. Abundant Number https://mathworld.wolfram.com/AbundantNumber.html 2026-06-17 mathworld.wolfram.com en The number appears in the Padovan sequence, preceded by 86, 114, and 151 (it is the sum of the first two of these).https://oeis.org/A000931 Sloane's A000931 : Padovan sequence The On-Line Encyclopedia of Integer Sequences OEIS Foundation 2016-05-28 The sum of Euler's totient function φ(x) over the first twenty-five integers is 200.A002088 - OEIS https://oeis.org/A002088 2026-06-17 oeis.org 200 is the smallest base 10 unprimeable number – it cannot be turned into a prime number by changing just one of its digits to any other digit.A192545 It is also a Harshad number.A005349 Niven (or Harshad, or harshad) numbers 200 is an Achilles number.A052486 Achilles numbers - powerful but imperfect: if n = Product(p_i^e_i) then all e_i > 1 (i.e., powerful), but the highest common factor of the e_i is 1, i.e., not a perfect power References two hundred 2 Category:Integers