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11419389 = 328315287
BaseRepresentation
bin101011100011…
…111011111101
3210111011110100
4223203323331
510410410024
61044431313
7166030452
oct53437375
923434410
1011419389
11649a613
1239a8539
13249a947
141733829
1510087c9
hexae3efd

11419389 has 12 divisors (see below), whose sum is σ = 16694496. Its totient is φ = 7520712.

The previous prime is 11419379. The next prime is 11419403. The reversal of 11419389 is 98391411.

It is not a de Polignac number, because 11419389 - 215 = 11386621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11419349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6897 + ... + 8390.

It is an arithmetic number, because the mean of its divisors is an integer number (1391208).

Almost surely, 211419389 is an apocalyptic number.

It is an amenable number.

11419389 is a deficient number, since it is larger than the sum of its proper divisors (5275107).

11419389 is a wasteful number, since it uses less digits than its factorization.

11419389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15376 (or 15373 counting only the distinct ones).

The product of its digits is 7776, while the sum is 36.

The square root of 11419389 is about 3379.2586465081. The cubic root of 11419389 is about 225.1892333956.

It can be divided in two parts, 114 and 19389, that added together give a triangular number (19503 = T197).

The spelling of 11419389 in words is "eleven million, four hundred nineteen thousand, three hundred eighty-nine".

Divisors: 1 3 9 83 249 747 15287 45861 137583 1268821 3806463 11419389