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2042125 = 5317312
BaseRepresentation
bin111110010100100001101
310211202021021
413302210031
51010322000
6111434141
723233501
oct7624415
93752237
102042125
111175308
12825951
13566677
143b2301
152a511a
hex1f290d

2042125 has 24 divisors (see below), whose sum is σ = 2788344. Its totient is φ = 1488000.

The previous prime is 2042123. The next prime is 2042129. The reversal of 2042125 is 5212402.

It can be written as a sum of positive squares in 4 ways, for example, as 8649 + 2033476 = 93^2 + 1426^2 .

It is not a de Polignac number, because 2042125 - 21 = 2042123 is a prime.

It is a Duffinian number.

2042125 is a lucky number.

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 2042099 and 2042108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2042123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65860 + ... + 65890.

It is an arithmetic number, because the mean of its divisors is an integer number (116181).

22042125 is an apocalyptic number.

2042125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2042125 is a deficient number, since it is larger than the sum of its proper divisors (746219).

2042125 is an equidigital number, since it uses as much as digits as its factorization.

2042125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94 (or 53 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 2042125 is about 1429.0293908804. The cubic root of 2042125 is about 126.8705358100.

Adding to 2042125 its reverse (5212402), we get a palindrome (7254527).

The spelling of 2042125 in words is "two million, forty-two thousand, one hundred twenty-five".

Divisors: 1 5 17 25 31 85 125 155 425 527 775 961 2125 2635 3875 4805 13175 16337 24025 65875 81685 120125 408425 2042125