Base | Representation |
---|---|
bin | 100100011110… |
… | …1010010100000 |
3 | 1022222200010110 |
4 | 1020331102200 |
5 | 14344003113 |
6 | 1521531320 |
7 | 321364131 |
oct | 110752240 |
9 | 38880113 |
10 | 19125408 |
11 | a883225 |
12 | 64a3b40 |
13 | 3c68313 |
14 | 277bc88 |
15 | 1a2bbc3 |
hex | 123d4a0 |
19125408 has 48 divisors (see below), whose sum is σ = 53161920. Its totient is φ = 5999616.
The previous prime is 19125377. The next prime is 19125409. The reversal of 19125408 is 80452191.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (48).
It is not an unprimeable number, because it can be changed into a prime (19125409) 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, 4228 + ... + 7491.
It is an arithmetic number, because the mean of its divisors is an integer number (1107540).
Almost surely, 219125408 is an apocalyptic number.
It is an amenable number.
19125408 is an abundant number, since it is smaller than the sum of its proper divisors (34036512).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
19125408 is a wasteful number, since it uses less digits than its factorization.
19125408 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11749 (or 11741 counting only the distinct ones).
The product of its (nonzero) digits is 2880, while the sum is 30.
The square root of 19125408 is about 4373.2605685003. The cubic root of 19125408 is about 267.4259637307.
Adding to 19125408 its reverse (80452191), we get a palindrome (99577599).
The spelling of 19125408 in words is "nineteen million, one hundred twenty-five thousand, four hundred eight".
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