Base | Representation |
---|---|
bin | 111010110001100100000 |
3 | 10121211212101 |
4 | 13112030200 |
5 | 443112140 |
6 | 105140144 |
7 | 22240633 |
oct | 7261440 |
9 | 3554771 |
10 | 1925920 |
11 | 10a5a77 |
12 | 78a654 |
13 | 5257c9 |
14 | 381c1a |
15 | 28099a |
hex | 1d6320 |
1925920 has 24 divisors (see below), whose sum is σ = 4550364. Its totient is φ = 770304.
The previous prime is 1925909. The next prime is 1925929. The reversal of 1925920 is 295291.
1925920 is nontrivially palindromic in base 3.
It can be written as a sum of positive squares in 2 ways, for example, as 1607824 + 318096 = 1268^2 + 564^2 .
It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.
It is not an unprimeable number, because it can be changed into a prime (1925929) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5859 + ... + 6178.
21925920 is an apocalyptic number.
1925920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
1925920 is an abundant number, since it is smaller than the sum of its proper divisors (2624444).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1925920 is a wasteful number, since it uses less digits than its factorization.
1925920 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12052 (or 12044 counting only the distinct ones).
The product of its (nonzero) digits is 1620, while the sum is 28.
The square root of 1925920 is about 1387.7751979337. The cubic root of 1925920 is about 124.4169109532.
The spelling of 1925920 in words is "one million, nine hundred twenty-five thousand, nine hundred twenty".
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