159030135

Appears in sequences

• Odd solutions to abs(sigma(k) - 2k) <= log(k). Numbers k whose abundance-radius does not exceed log(k).at n=4A088012
• Odd numbers whose abundancy is closer to 2 than any smaller odd number.at n=22A171929
• Odd abundant numbers whose abundancy is closer to 2 than any smaller odd abundant number.at n=13A188263
• Numbers k whose abundance is 18: sigma(k) - 2*k = 18.at n=7A223610
• Numbers k such that sigma(k) == 0 (mod k+9).at n=8A274563
• Odd bi-unitary abundant numbers whose bi-unitary abundancy is closer to 2 than that of any smaller odd bi-unitary abundant number.at n=23A335053