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12113240 = 235302831
BaseRepresentation
bin101110001101…
…010101011000
3211210102020112
4232031111120
511100110430
61111343452
7204650366
oct56152530
924712215
1012113240
116923947
124081b88
1326816c9
141874636
1510e4195
hexb8d558

12113240 has 16 divisors (see below), whose sum is σ = 27254880. Its totient is φ = 4845280.

The previous prime is 12113221. The next prime is 12113251. The reversal of 12113240 is 4231121.

12113240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151376 + ... + 151455.

It is an arithmetic number, because the mean of its divisors is an integer number (1703430).

Almost surely, 212113240 is an apocalyptic number.

12113240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12113240 is an abundant number, since it is smaller than the sum of its proper divisors (15141640).

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

12113240 is a wasteful number, since it uses less digits than its factorization.

12113240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302842 (or 302838 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 12113240 is about 3480.4080220572. The cubic root of 12113240 is about 229.6607474819.

Adding to 12113240 its reverse (4231121), we get a palindrome (16344361).

The spelling of 12113240 in words is "twelve million, one hundred thirteen thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 302831 605662 1211324 1514155 2422648 3028310 6056620 12113240