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12025040 = 245831811
BaseRepresentation
bin101101110111…
…110011010000
3211121221020212
4231313303100
511034300130
61105423252
7204132266
oct55676320
924557225
1012025040
116873655
12403ab28
132650511
141850436
1510c7e95
hexb77cd0

12025040 has 40 divisors (see below), whose sum is σ = 28310688. Its totient is φ = 4749440.

The previous prime is 12025033. The next prime is 12025049. The reversal of 12025040 is 4052021.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12025049) 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, 5735 + ... + 7545.

Almost surely, 212025040 is an apocalyptic number.

12025040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12025040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14155344).

12025040 is an abundant number, since it is smaller than the sum of its proper divisors (16285648).

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

12025040 is a wasteful number, since it uses less digits than its factorization.

12025040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1907 (or 1901 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 12025040 is about 3467.7139443732. The cubic root of 12025040 is about 229.1019803471.

Adding to 12025040 its reverse (4052021), we get a palindrome (16077061).

The spelling of 12025040 in words is "twelve million, twenty-five thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 83 166 332 415 664 830 1328 1660 1811 3320 3622 6640 7244 9055 14488 18110 28976 36220 72440 144880 150313 300626 601252 751565 1202504 1503130 2405008 3006260 6012520 12025040