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19125808 = 241391951
BaseRepresentation
bin100100011110…
…1011000110000
31022222200200021
41020331120300
514344011213
61521533224
7321365242
oct110753060
938880607
1019125808
11a883559
1264a4214
133c68560
14277c092
151a2bd8d
hex123d630

19125808 has 20 divisors (see below), whose sum is σ = 39907168. Its totient is φ = 8827200.

The previous prime is 19125779. The next prime is 19125809. The reversal of 19125808 is 80852191.

It is not an unprimeable number, because it can be changed into a prime (19125809) 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, 45768 + ... + 46183.

Almost surely, 219125808 is an apocalyptic number.

It is an amenable number.

19125808 is an abundant number, since it is smaller than the sum of its proper divisors (20781360).

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

19125808 is a wasteful number, since it uses less digits than its factorization.

19125808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91972 (or 91966 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 34.

The square root of 19125808 is about 4373.3063007295. The cubic root of 19125808 is about 267.4278280855.

Adding to 19125808 its reverse (80852191), we get a palindrome (99977999).

The spelling of 19125808 in words is "nineteen million, one hundred twenty-five thousand, eight hundred eight".

Divisors: 1 2 4 8 13 16 26 52 104 208 91951 183902 367804 735608 1195363 1471216 2390726 4781452 9562904 19125808