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19305104 = 2471313259
BaseRepresentation
bin100100110100…
…1001010010000
31100022210121212
41021221022100
514420230404
61525435252
7323043050
oct111511220
940283555
1019305104
11a996235
12656bb28
133ccc050
1427c7560
151a6506e
hex1269290

19305104 has 40 divisors (see below), whose sum is σ = 46038720. Its totient is φ = 7636608.

The previous prime is 19305103. The next prime is 19305107. The reversal of 19305104 is 40150391.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 19305104.

It is not an unprimeable number, because it can be changed into a prime (19305101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5174 + ... + 8085.

It is an arithmetic number, because the mean of its divisors is an integer number (1150968).

Almost surely, 219305104 is an apocalyptic number.

19305104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

19305104 is an abundant number, since it is smaller than the sum of its proper divisors (26733616).

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

19305104 is a wasteful number, since it uses less digits than its factorization.

19305104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13287 (or 13281 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 19305104 is about 4393.7573897520. The cubic root of 19305104 is about 268.2609028260.

Adding to 19305104 its reverse (40150391), we get a palindrome (59455495).

The spelling of 19305104 in words is "nineteen million, three hundred five thousand, one hundred four".

Divisors: 1 2 4 7 8 13 14 16 26 28 52 56 91 104 112 182 208 364 728 1456 13259 26518 53036 92813 106072 172367 185626 212144 344734 371252 689468 742504 1206569 1378936 1485008 2413138 2757872 4826276 9652552 19305104