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2122025 = 52174993
BaseRepresentation
bin1000000110000100101001
310222210212112
420012010221
51020401100
6113252105
724015443
oct10060451
93883775
102122025
11121a344
12864035
13593b49
143d3493
152bdb35
hex206129

2122025 has 12 divisors (see below), whose sum is σ = 2786652. Its totient is φ = 1597440.

The previous prime is 2122013. The next prime is 2122031. The reversal of 2122025 is 5202212.

It can be written as a sum of positive squares in 6 ways, for example, as 10816 + 2111209 = 104^2 + 1453^2 .

It is not a de Polignac number, because 2122025 - 24 = 2122009 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2072 + ... + 2921.

It is an arithmetic number, because the mean of its divisors is an integer number (232221).

22122025 is an apocalyptic number.

2122025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2122025 is a deficient number, since it is larger than the sum of its proper divisors (664627).

2122025 is a wasteful number, since it uses less digits than its factorization.

2122025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5020 (or 5015 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 2122025 is about 1456.7171997337. The cubic root of 2122025 is about 128.5040549423.

Adding to 2122025 its reverse (5202212), we get a palindrome (7324237).

The spelling of 2122025 in words is "two million, one hundred twenty-two thousand, twenty-five".

Divisors: 1 5 17 25 85 425 4993 24965 84881 124825 424405 2122025