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12049308 = 22321971699
BaseRepresentation
bin101101111101…
…101110011100
3211200011112200
4231331232130
511041034213
61110131500
7204263115
oct55755634
924604480
1012049308
11688a907
124050b90
13265b58b
14185920c
1510d0273
hexb7db9c

12049308 has 36 divisors (see below), whose sum is σ = 30630600. Its totient is φ = 3993696.

The previous prime is 12049273. The next prime is 12049313. The reversal of 12049308 is 80394021.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6243 + ... + 7941.

It is an arithmetic number, because the mean of its divisors is an integer number (850850).

Almost surely, 212049308 is an apocalyptic number.

12049308 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12049308 is an abundant number, since it is smaller than the sum of its proper divisors (18581292).

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

12049308 is a wasteful number, since it uses less digits than its factorization.

12049308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1906 (or 1901 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 12049308 is about 3471.2113159530. The cubic root of 12049308 is about 229.2559953828.

The spelling of 12049308 in words is "twelve million, forty-nine thousand, three hundred eight".

Divisors: 1 2 3 4 6 9 12 18 36 197 394 591 788 1182 1699 1773 2364 3398 3546 5097 6796 7092 10194 15291 20388 30582 61164 334703 669406 1004109 1338812 2008218 3012327 4016436 6024654 12049308