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12732808 = 2311257563
BaseRepresentation
bin110000100100…
…100110001000
3212221220010111
4300210212020
511224422213
61132524104
7213140614
oct60444610
925856114
1012732808
117207390
124320634
13283a70a
141996344
1511b7a3d
hexc24988

12732808 has 32 divisors (see below), whose sum is σ = 26192160. Its totient is φ = 5754880.

The previous prime is 12732803. The next prime is 12732809. The reversal of 12732808 is 80823721.

It is a self number, because there is not a number n which added to its sum of digits gives 12732808.

It is not an unprimeable number, because it can be changed into a prime (12732803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22335 + ... + 22897.

It is an arithmetic number, because the mean of its divisors is an integer number (818505).

Almost surely, 212732808 is an apocalyptic number.

It is an amenable number.

12732808 is an abundant number, since it is smaller than the sum of its proper divisors (13459352).

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

12732808 is a wasteful number, since it uses less digits than its factorization.

12732808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837 (or 833 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 12732808 is about 3568.3060406865. The cubic root of 12732808 is about 233.5113869975.

The spelling of 12732808 in words is "twelve million, seven hundred thirty-two thousand, eight hundred eight".

Divisors: 1 2 4 8 11 22 44 88 257 514 563 1028 1126 2056 2252 2827 4504 5654 6193 11308 12386 22616 24772 49544 144691 289382 578764 1157528 1591601 3183202 6366404 12732808