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12440088 = 233357593
BaseRepresentation
bin101111011101…
…001000011000
3212102000121000
4233131020120
511141040323
61122345000
7210511323
oct57351030
925360530
1012440088
117027471
1241bb160
1327673cb
14191b7ba
15115ae43
hexbdd218

12440088 has 32 divisors (see below), whose sum is σ = 34556400. Its totient is φ = 4146624.

The previous prime is 12440059. The next prime is 12440089. The reversal of 12440088 is 88004421.

12440088 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12440089) 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, 28581 + ... + 29012.

Almost surely, 212440088 is an apocalyptic number.

12440088 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12440088 is an abundant number, since it is smaller than the sum of its proper divisors (22116312).

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

12440088 is a wasteful number, since it uses less digits than its factorization.

12440088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57608 (or 57598 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 12440088 is about 3527.0508927431. The cubic root of 12440088 is about 231.7080652227.

The spelling of 12440088 in words is "twelve million, four hundred forty thousand, eighty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 108 216 57593 115186 172779 230372 345558 460744 518337 691116 1036674 1382232 1555011 2073348 3110022 4146696 6220044 12440088