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12162940 = 225608147
BaseRepresentation
bin101110011001…
…011101111100
3211212221102021
4232121131330
511103203230
61112405524
7205245316
oct56313574
924787367
1012162940
116958219
1240a68a4
13269b20a
1418887b6
151103c7a
hexb9977c

12162940 has 12 divisors (see below), whose sum is σ = 25542216. Its totient is φ = 4865168.

The previous prime is 12162923. The next prime is 12162959. The reversal of 12162940 is 4926121.

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, 304054 + ... + 304093.

It is an arithmetic number, because the mean of its divisors is an integer number (2128518).

Almost surely, 212162940 is an apocalyptic number.

12162940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12162940 is an abundant number, since it is smaller than the sum of its proper divisors (13379276).

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

12162940 is a wasteful number, since it uses less digits than its factorization.

12162940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608156 (or 608154 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 12162940 is about 3487.5406807663. The cubic root of 12162940 is about 229.9744142932.

The spelling of 12162940 in words is "twelve million, one hundred sixty-two thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 608147 1216294 2432588 3040735 6081470 12162940