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3128132 = 227472377
BaseRepresentation
bin1011111011101101000100
312212220222202
423323231010
51300100012
6151014032
735405630
oct13735504
95786882
103128132
111847237
12106a318
13856a87
145b5dc0
1541bcc2
hex2fbb44

3128132 has 24 divisors (see below), whose sum is σ = 6392064. Its totient is φ = 1311552.

The previous prime is 3128131. The next prime is 3128159. The reversal of 3128132 is 2318213.

It is not an unprimeable number, because it can be changed into a prime (3128131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128 + ... + 2504.

It is an arithmetic number, because the mean of its divisors is an integer number (266336).

Almost surely, 23128132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3128132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3196032).

3128132 is an abundant number, since it is smaller than the sum of its proper divisors (3263932).

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

3128132 is a wasteful number, since it uses less digits than its factorization.

3128132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2435 (or 2433 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

The square root of 3128132 is about 1768.6525944911. The cubic root of 3128132 is about 146.2497133946.

It can be divided in two parts, 31281 and 32, that added together give a palindrome (31313).

The spelling of 3128132 in words is "three million, one hundred twenty-eight thousand, one hundred thirty-two".

Divisors: 1 2 4 7 14 28 47 94 188 329 658 1316 2377 4754 9508 16639 33278 66556 111719 223438 446876 782033 1564066 3128132