Back عدد زائد Arabic Залішнія лікі Byelorussian Богато число Bulgarian সমৃদ্ধ সংখ্যা Bengali/Bangla Niver puilh Breton Nombre abundant Catalan زیادە ژمارە CKB Abundantní číslo Czech Excessivt tal Danish Abundante Zahl German
In number theory, an abundant number or excessive number is a positive integer for which the sum of its proper divisors is greater than the number. The integer 12 is the first abundant number. Its proper divisors are 1, 2, 3, 4 and 6 for a total of 16. The amount by which the sum exceeds the number is the abundance. The number 12 has an abundance of 4, for example.