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12228254 = 243142189
BaseRepresentation
bin101110101001…
…011010011110
3212000021000022
4232221122132
511112301004
61114032142
7205636613
oct56513236
925007008
1012228254
1169a22a5
124118652
1326c1b6c
1418a450a
1511182be
hexba969e

12228254 has 8 divisors (see below), whose sum is σ = 18769080. Its totient is φ = 5971896.

The previous prime is 12228239. The next prime is 12228257. The reversal of 12228254 is 45282221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12228257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71009 + ... + 71180.

It is an arithmetic number, because the mean of its divisors is an integer number (2346135).

Almost surely, 212228254 is an apocalyptic number.

12228254 is a deficient number, since it is larger than the sum of its proper divisors (6540826).

12228254 is a wasteful number, since it uses less digits than its factorization.

12228254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142234.

The product of its digits is 2560, while the sum is 26.

The square root of 12228254 is about 3496.8920486626. The cubic root of 12228254 is about 230.3853276207.

The spelling of 12228254 in words is "twelve million, two hundred twenty-eight thousand, two hundred fifty-four".

Divisors: 1 2 43 86 142189 284378 6114127 12228254