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120312310120 = 2355507546179
BaseRepresentation
bin111000000001100101…
…1000010100101101000
3102111112202211121102221
41300003023002211220
53432344422410440
6131134250203424
711456310522352
oct1600313024550
9374482747387
10120312310120
114702a187362
121b398423574
13b464b05362
145b74a020d2
1531e25e6d4a
hex1c032c2968

120312310120 has 32 divisors (see below), whose sum is σ = 270752349600. Its totient is φ = 48116097088.

The previous prime is 120312310051. The next prime is 120312310159. The reversal of 120312310120 is 21013213021.

It is a super-2 number, since 2×1203123101202 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120312310094 and 120312310103.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52810 + ... + 493369.

It is an arithmetic number, because the mean of its divisors is an integer number (8461010925).

Almost surely, 2120312310120 is an apocalyptic number.

120312310120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120312310120 is an abundant number, since it is smaller than the sum of its proper divisors (150440039480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120312310120 is a wasteful number, since it uses less digits than its factorization.

120312310120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551697 (or 551693 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 120312310120 its reverse (21013213021), we get a palindrome (141325523141).

The spelling of 120312310120 in words is "one hundred twenty billion, three hundred twelve million, three hundred ten thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 5507 11014 22028 27535 44056 55070 110140 220280 546179 1092358 2184716 2730895 4369432 5461790 10923580 21847160 3007807753 6015615506 12031231012 15039038765 24062462024 30078077530 60156155060 120312310120