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1230025 = 5249201
BaseRepresentation
bin100101100010011001001
32022111021111
410230103021
5303330100
642210321
713312036
oct4542311
92274244
101230025
11770155
124b39a1
13340b34
1424038d
151946ba
hex12c4c9

1230025 has 6 divisors (see below), whose sum is σ = 1525262. Its totient is φ = 984000.

The previous prime is 1230023. The next prime is 1230029. The reversal of 1230025 is 5200321.

It can be written as a sum of positive squares in 3 ways, for example, as 144 + 1229881 = 12^2 + 1109^2 .

It is not a de Polignac number, because 1230025 - 21 = 1230023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1229987 and 1230014.

It is not an unprimeable number, because it can be changed into a prime (1230023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24576 + ... + 24625.

21230025 is an apocalyptic number.

It is an amenable number.

1230025 is a deficient number, since it is larger than the sum of its proper divisors (295237).

1230025 is an equidigital number, since it uses as much as digits as its factorization.

1230025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49211 (or 49206 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 1230025 is about 1109.0649214541. The cubic root of 1230025 is about 107.1448528729.

Adding to 1230025 its reverse (5200321), we get a palindrome (6430346).

The spelling of 1230025 in words is "one million, two hundred thirty thousand, twenty-five".

Divisors: 1 5 25 49201 246005 1230025