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12289708 = 2217180731
BaseRepresentation
bin101110111000…
…011010101100
3212010101022101
4232320122230
511121232313
61115224444
7206314024
oct56703254
925111271
1012289708
116a34492
124148124
132713b22
1418bca84
15112b5dd
hexbb86ac

12289708 has 12 divisors (see below), whose sum is σ = 22772232. Its totient is φ = 5783360.

The previous prime is 12289687. The next prime is 12289757. The reversal of 12289708 is 80798221.

It is an unprimeable number.

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, 90298 + ... + 90433.

It is an arithmetic number, because the mean of its divisors is an integer number (1897686).

Almost surely, 212289708 is an apocalyptic number.

It is an amenable number.

12289708 is a deficient number, since it is larger than the sum of its proper divisors (10482524).

12289708 is a wasteful number, since it uses less digits than its factorization.

12289708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180752 (or 180750 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 12289708 is about 3505.6679819972. The cubic root of 12289708 is about 230.7706224304.

The spelling of 12289708 in words is "twelve million, two hundred eighty-nine thousand, seven hundred eight".

Divisors: 1 2 4 17 34 68 180731 361462 722924 3072427 6144854 12289708