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120211233312 = 25311311081419
BaseRepresentation
bin110111111110100100…
…1011101101000100000
3102111021201122101010110
41233331021131220200
53432143033431222
6131120235531320
711453642423652
oct1577511355040
9374251571113
10120211233312
1146a8811a905
121b36a5b9b40
13b449ba56b1
145b654106d2
1531d87cd30c
hex1bfd25da20

120211233312 has 48 divisors (see below), whose sum is σ = 318347033760. Its totient is φ = 39715802112.

The previous prime is 120211233301. The next prime is 120211233353. The reversal of 120211233312 is 213332112021.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×1202112333122 (a number of 23 digits) contains 22 as substring.

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, 5529862 + ... + 5551557.

It is an arithmetic number, because the mean of its divisors is an integer number (6632229870).

Almost surely, 2120211233312 is an apocalyptic number.

120211233312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

120211233312 is an abundant number, since it is smaller than the sum of its proper divisors (198135800448).

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

120211233312 is a wasteful number, since it uses less digits than its factorization.

120211233312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11081545 (or 11081537 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 120211233312 its reverse (213332112021), we get a palindrome (333543345333).

The spelling of 120211233312 in words is "one hundred twenty billion, two hundred eleven million, two hundred thirty-three thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 113 226 339 452 678 904 1356 1808 2712 3616 5424 10848 11081419 22162838 33244257 44325676 66488514 88651352 132977028 177302704 265954056 354605408 531908112 1063816224 1252200347 2504400694 3756601041 5008801388 7513202082 10017602776 15026404164 20035205552 30052808328 40070411104 60105616656 120211233312