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12478288 = 241941047
BaseRepresentation
bin101111100110…
…011101010000
3212110221222211
4233212131100
511143301123
61123241504
7211030564
oct57463520
925427884
1012478288
117053139
124219294
13277b904
14192b6a4
15116740d
hexbe6750

12478288 has 20 divisors (see below), whose sum is σ = 25449760. Its totient is φ = 5910624.

The previous prime is 12478283. The next prime is 12478327. The reversal of 12478288 is 88287421.

It is a self number, because there is not a number n which added to its sum of digits gives 12478288.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12478283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20220 + ... + 20827.

It is an arithmetic number, because the mean of its divisors is an integer number (1272488).

Almost surely, 212478288 is an apocalyptic number.

It is an amenable number.

12478288 is an abundant number, since it is smaller than the sum of its proper divisors (12971472).

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

12478288 is a wasteful number, since it uses less digits than its factorization.

12478288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41074 (or 41068 counting only the distinct ones).

The product of its digits is 57344, while the sum is 40.

The square root of 12478288 is about 3532.4620309354. The cubic root of 12478288 is about 231.9449929042.

The spelling of 12478288 in words is "twelve million, four hundred seventy-eight thousand, two hundred eighty-eight".

Divisors: 1 2 4 8 16 19 38 76 152 304 41047 82094 164188 328376 656752 779893 1559786 3119572 6239144 12478288