Base | Representation |
---|---|
bin | 100100011110… |
… | …0000111100000 |
3 | 1022222102112200 |
4 | 1020330013200 |
5 | 14343324413 |
6 | 1521453200 |
7 | 321344133 |
oct | 110740740 |
9 | 38872480 |
10 | 19120608 |
11 | a87a661 |
12 | 64a1200 |
13 | 3c66090 |
14 | 277a21a |
15 | 1a2a573 |
hex | 123c1e0 |
19120608 has 72 divisors (see below), whose sum is σ = 58568328. Its totient is φ = 5882112.
The previous prime is 19120573. The next prime is 19120639. The reversal of 19120608 is 80602191.
It is a tau number, because it is divible by the number of its divisors (72).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1191 + ... + 6297.
It is an arithmetic number, because the mean of its divisors is an integer number (813449).
Almost surely, 219120608 is an apocalyptic number.
19120608 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 19120608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29284164).
19120608 is an abundant number, since it is smaller than the sum of its proper divisors (39447720).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
19120608 is a wasteful number, since it uses less digits than its factorization.
19120608 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5136 (or 5125 counting only the distinct ones).
The product of its (nonzero) digits is 864, while the sum is 27.
The square root of 19120608 is about 4372.7117444442. The cubic root of 19120608 is about 267.4035894450.
Adding to 19120608 its reverse (80602191), we get a palindrome (99722799).
The spelling of 19120608 in words is "nineteen million, one hundred twenty thousand, six hundred eight".
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