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12030220212 = 2231002518351
BaseRepresentation
bin10110011010000111…
…01001011110110100
31011001101222111200120
423031003221132310
5144114214021322
65305425211540
7604056120213
oct131503513664
934041874616
1012030220212
11511382255a
1223b8a90bb0
1311994b5aca
14821a4707a
154a623ea5c
hex2cd0e97b4

12030220212 has 12 divisors (see below), whose sum is σ = 28070513856. Its totient is φ = 4010073400.

The previous prime is 12030220199. The next prime is 12030220229. The reversal of 12030220212 is 21202203021.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 12030220191 and 12030220200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 501259164 + ... + 501259187.

It is an arithmetic number, because the mean of its divisors is an integer number (2339209488).

Almost surely, 212030220212 is an apocalyptic number.

12030220212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12030220212 is an abundant number, since it is smaller than the sum of its proper divisors (16040293644).

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

12030220212 is a wasteful number, since it uses less digits than its factorization.

12030220212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002518358 (or 1002518356 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 12030220212 its reverse (21202203021), we get a palindrome (33232423233).

The spelling of 12030220212 in words is "twelve billion, thirty million, two hundred twenty thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 1002518351 2005036702 3007555053 4010073404 6015110106 12030220212