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11388741 = 371323209
BaseRepresentation
bin101011011100…
…011101000101
3210102121102020
4223130131011
510403414431
61044033353
7165542220
oct53343505
923377366
1011388741
116479591
123992859
132489a00
1417265b7
15eee696
hexadc745

11388741 has 24 divisors (see below), whose sum is σ = 18797760. Its totient is φ = 6005376.

The previous prime is 11388721. The next prime is 11388743. The reversal of 11388741 is 14788311.

11388741 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11388741 - 25 = 11388709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11388743) 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 23 ways as a sum of consecutive naturals, for example, 1945 + ... + 5153.

It is an arithmetic number, because the mean of its divisors is an integer number (783240).

Almost surely, 211388741 is an apocalyptic number.

It is an amenable number.

11388741 is a deficient number, since it is larger than the sum of its proper divisors (7409019).

11388741 is a wasteful number, since it uses less digits than its factorization.

11388741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3245 (or 3232 counting only the distinct ones).

The product of its digits is 5376, while the sum is 33.

The square root of 11388741 is about 3374.7208773467. The cubic root of 11388741 is about 224.9875943777.

The spelling of 11388741 in words is "eleven million, three hundred eighty-eight thousand, seven hundred forty-one".

Divisors: 1 3 7 13 21 39 91 169 273 507 1183 3209 3549 9627 22463 41717 67389 125151 292019 542321 876057 1626963 3796247 11388741