friendly number
friendly number · friendly numbers
A number that shares its abundancy with another positive integerA number that shares its abundancy with another positive integer.
Meaning
1 sensesA number that shares its abundancy with another positive integer.
The number 30 is a friendly number because both 30 and 140 have an abundancy index of 2.4.
Forms
plural: friendly numbers| Singular | friendly number |
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| Plural | friendly numbers |
regular