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122480779979 = 192615561999
BaseRepresentation
bin111001000010001101…
…1000110001011001011
3102201010220012021212102
41302010123012023023
54001320034424404
6132133352104015
711564121311045
oct1620433061313
9381126167772
10122480779979
1147a42230908
121b8a269500b
13b71c14740c
145cdc9d2a95
1532bcb8671e
hex1c846c62cb

122480779979 has 12 divisors (see below), whose sum is σ = 131385564000. Its totient is φ = 114132198960.

The previous prime is 122480779963. The next prime is 122480779997. The reversal of 122480779979 is 979977084221.

It is not a de Polignac number, because 122480779979 - 24 = 122480779963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122480779909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2758979 + ... + 2803020.

It is an arithmetic number, because the mean of its divisors is an integer number (10948797000).

Almost surely, 2122480779979 is an apocalyptic number.

122480779979 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

122480779979 is a deficient number, since it is larger than the sum of its proper divisors (8904784021).

122480779979 is an equidigital number, since it uses as much as digits as its factorization.

122480779979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5562098 (or 5562079 counting only the distinct ones).

The product of its (nonzero) digits is 32006016, while the sum is 65.

The spelling of 122480779979 in words is "one hundred twenty-two billion, four hundred eighty million, seven hundred seventy-nine thousand, nine hundred seventy-nine".

Divisors: 1 19 61 361 1159 22021 5561999 105677981 339281939 2007881639 6446356841 122480779979