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2743988 = 221352769
BaseRepresentation
bin1010011101111010110100
312011102001012
422131322310
51200301423
6134451352
732215652
oct12357264
95142035
102743988
111604665
12b03b58
13750c80
14515dd2
15393078
hex29deb4

2743988 has 12 divisors (see below), whose sum is σ = 5171460. Its totient is φ = 1266432.

The previous prime is 2743967. The next prime is 2743991. The reversal of 2743988 is 8893472.

It can be written as a sum of positive squares in 2 ways, for example, as 559504 + 2184484 = 748^2 + 1478^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 26333 + ... + 26436.

It is an arithmetic number, because the mean of its divisors is an integer number (430955).

22743988 is an apocalyptic number.

It is an amenable number.

2743988 is a deficient number, since it is larger than the sum of its proper divisors (2427472).

2743988 is a wasteful number, since it uses less digits than its factorization.

2743988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52786 (or 52784 counting only the distinct ones).

The product of its digits is 96768, while the sum is 41.

The square root of 2743988 is about 1656.4987171743. The cubic root of 2743988 is about 139.9997959181. Note that the first 3 decimals are identical.

The spelling of 2743988 in words is "two million, seven hundred forty-three thousand, nine hundred eighty-eight".

Divisors: 1 2 4 13 26 52 52769 105538 211076 685997 1371994 2743988