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11389976 = 2313109519
BaseRepresentation
bin101011011100…
…110000011000
3210102200002222
4223130300120
510403434401
61044043212
7165545633
oct53346030
923380088
1011389976
11647a504
123993508
13248a440
141726c1a
15eeec1b
hexadcc18

11389976 has 16 divisors (see below), whose sum is σ = 22999200. Its totient is φ = 5256864.

The previous prime is 11389957. The next prime is 11389979. The reversal of 11389976 is 67998311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11389979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54656 + ... + 54863.

It is an arithmetic number, because the mean of its divisors is an integer number (1437450).

Almost surely, 211389976 is an apocalyptic number.

It is an amenable number.

11389976 is an abundant number, since it is smaller than the sum of its proper divisors (11609224).

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

11389976 is a wasteful number, since it uses less digits than its factorization.

11389976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109538 (or 109534 counting only the distinct ones).

The product of its digits is 81648, while the sum is 44.

The square root of 11389976 is about 3374.9038504823. The cubic root of 11389976 is about 224.9957266678.

The spelling of 11389976 in words is "eleven million, three hundred eighty-nine thousand, nine hundred seventy-six".

Divisors: 1 2 4 8 13 26 52 104 109519 219038 438076 876152 1423747 2847494 5694988 11389976