Search a number
-
+
1442925 = 325211253
BaseRepresentation
bin101100000010001101101
32201022022200
411200101231
5332133200
650532113
715156531
oct5402155
92638280
101442925
118a6100
12597039
133b6a03
14297bc1
151d7800
hex16046d

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".

Divisors: 1 3 5 9 11 15 25 33 45 53 55 75 99 121 159 165 225 265 275 363 477 495 583 605 795 825 1089 1325 1749 1815 2385 2475 2915 3025 3975 5247 5445 6413 8745 9075 11925 14575 19239 26235 27225 32065 43725 57717 96195 131175 160325 288585 480975 1442925