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12349390 = 252353693
BaseRepresentation
bin101111000110…
…111111001110
3212020102011211
4233012333032
511130140030
61120405034
7206653024
oct57067716
925212154
1012349390
116a75309
12417677a
132735041
1418d6714
15113e12a
hexbc6fce

12349390 has 16 divisors (see below), whose sum is σ = 23195808. Its totient is φ = 4724896.

The previous prime is 12349387. The next prime is 12349397. The reversal of 12349390 is 9394321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12349397) 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, 26617 + ... + 27076.

It is an arithmetic number, because the mean of its divisors is an integer number (1449738).

Almost surely, 212349390 is an apocalyptic number.

12349390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12349390 is a deficient number, since it is larger than the sum of its proper divisors (10846418).

12349390 is a wasteful number, since it uses less digits than its factorization.

12349390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53723.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 12349390 is about 3514.1698877544. The cubic root of 12349390 is about 231.1435799598.

The spelling of 12349390 in words is "twelve million, three hundred forty-nine thousand, three hundred ninety".

Divisors: 1 2 5 10 23 46 115 230 53693 107386 268465 536930 1234939 2469878 6174695 12349390