Base | Representation |
---|---|
bin | 101100000010001101101 |
3 | 2201022022200 |
4 | 11200101231 |
5 | 332133200 |
6 | 50532113 |
7 | 15156531 |
oct | 5402155 |
9 | 2638280 |
10 | 1442925 |
11 | 8a6100 |
12 | 597039 |
13 | 3b6a03 |
14 | 297bc1 |
15 | 1d7800 |
hex | 16046d |
1442925 has 54 divisors (see below), whose sum is σ = 2894346. Its totient is φ = 686400.
The previous prime is 1442923. The next prime is 1442939. The reversal of 1442925 is 5292441.
It can be written as a sum of positive squares in 3 ways, for example, as 184041 + 1258884 = 429^2 + 1122^2 .
It is not a de Polignac number, because 1442925 - 21 = 1442923 is a prime.
It is an Ulam number.
Its product of digits (2880) is a multiple of the sum of its prime divisors (72).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1442921) by changing a digit.
It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 27199 + ... + 27251.
It is an arithmetic number, because the mean of its divisors is an integer number (53599).
21442925 is an apocalyptic number.
1442925 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
1442925 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
1442925 is a wasteful number, since it uses less digits than its factorization.
1442925 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 91 (or 72 counting only the distinct ones).
The product of its digits is 2880, while the sum is 27.
The square root of 1442925 is about 1201.2181317313. The cubic root of 1442925 is about 113.0007309322. Note that the first 3 decimals are identical.
The spelling of 1442925 in words is "one million, four hundred forty-two thousand, nine hundred twenty-five".
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