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12307148 = 227439541
BaseRepresentation
bin101110111100…
…101011001100
3212011021020022
4232330223030
511122312043
61115441312
7206415620
oct56745314
925137208
1012307148
116a465a7
124156238
13271ba49
1418c5180
151131868
hexbbcacc

12307148 has 12 divisors (see below), whose sum is σ = 24614352. Its totient is φ = 5274480.

The previous prime is 12307109. The next prime is 12307171. The reversal of 12307148 is 84170321.

12307148 is an admirable 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, 219743 + ... + 219798.

It is an arithmetic number, because the mean of its divisors is an integer number (2051196).

Almost surely, 212307148 is an apocalyptic number.

It is an amenable number.

12307148 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12307148 is a wasteful number, since it uses less digits than its factorization.

12307148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439552 (or 439550 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 12307148 is about 3508.1545005886. The cubic root of 12307148 is about 230.8797310005.

Adding to 12307148 its reverse (84170321), we get a palindrome (96477469).

The spelling of 12307148 in words is "twelve million, three hundred seven thousand, one hundred forty-eight".

Divisors: 1 2 4 7 14 28 439541 879082 1758164 3076787 6153574 12307148