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19134808 = 2371131063
BaseRepresentation
bin100100011111…
…1100101011000
31100000011000121
41020333211120
514344303213
61522043024
7321433420
oct110774530
940004017
1019134808
11a88a2a0
1264a9474
133c6c694
142781480
151a2e88d
hex123f958

19134808 has 32 divisors (see below), whose sum is σ = 44732160. Its totient is φ = 7454880.

The previous prime is 19134803. The next prime is 19134811. The reversal of 19134808 is 80843191.

It is a happy number.

It is a super-2 number, since 2×191348082 = 732281754393728, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19134803) 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, 14916 + ... + 16147.

It is an arithmetic number, because the mean of its divisors is an integer number (1397880).

Almost surely, 219134808 is an apocalyptic number.

It is an amenable number.

19134808 is an abundant number, since it is smaller than the sum of its proper divisors (25597352).

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

19134808 is a wasteful number, since it uses less digits than its factorization.

19134808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31087 (or 31083 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 19134808 is about 4374.3351494827. The cubic root of 19134808 is about 267.4697691985.

Adding to 19134808 its reverse (80843191), we get a palindrome (99977999).

The spelling of 19134808 in words is "nineteen million, one hundred thirty-four thousand, eight hundred eight".

Divisors: 1 2 4 7 8 11 14 22 28 44 56 77 88 154 308 616 31063 62126 124252 217441 248504 341693 434882 683386 869764 1366772 1739528 2391851 2733544 4783702 9567404 19134808