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11390478 = 2311172583
BaseRepresentation
bin101011011100…
…111000001110
3210102200210120
4223130320032
510403443403
61044045410
7165550251
oct53347016
923380716
1011390478
11647a920
123993866
13248a738
141727098
15eeee53
hexadce0e

11390478 has 16 divisors (see below), whose sum is σ = 24852096. Its totient is φ = 3451640.

The previous prime is 11390473. The next prime is 11390479. The reversal of 11390478 is 87409311.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11390473) 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, 86226 + ... + 86357.

It is an arithmetic number, because the mean of its divisors is an integer number (1553256).

Almost surely, 211390478 is an apocalyptic number.

11390478 is an abundant number, since it is smaller than the sum of its proper divisors (13461618).

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

11390478 is a wasteful number, since it uses less digits than its factorization.

11390478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172599.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 11390478 is about 3374.9782221520. The cubic root of 11390478 is about 224.9990320946. Note that the first 3 decimals are identical.

Adding to 11390478 its reverse (87409311), we get a palindrome (98799789).

The spelling of 11390478 in words is "eleven million, three hundred ninety thousand, four hundred seventy-eight".

Divisors: 1 2 3 6 11 22 33 66 172583 345166 517749 1035498 1898413 3796826 5695239 11390478