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2205401125 = 5317643209
BaseRepresentation
bin1000001101110011…
…1100000000100101
312200200211222121011
42003130330000211
514004040314000
61002501222221
7105436412614
oct20334740045
95620758534
102205401125
11a31989564
12516701971
13291ba2ba5
1416cc8587b
15cd9372ba
hex8373c025

2205401125 has 8 divisors (see below), whose sum is σ = 2752340760. Its totient is φ = 1764320800.

The previous prime is 2205401123. The next prime is 2205401189. The reversal of 2205401125 is 5211045022.

It can be written as a sum of positive squares in 4 ways, for example, as 289238049 + 1916163076 = 17007^2 + 43774^2 .

It is not a de Polignac number, because 2205401125 - 21 = 2205401123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2205401096 and 2205401105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2205401123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8821480 + ... + 8821729.

It is an arithmetic number, because the mean of its divisors is an integer number (344042595).

Almost surely, 22205401125 is an apocalyptic number.

2205401125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2205401125 is a deficient number, since it is larger than the sum of its proper divisors (546939635).

2205401125 is an equidigital number, since it uses as much as digits as its factorization.

2205401125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17643224 (or 17643214 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 2205401125 is about 46961.6984893008. The cubic root of 2205401125 is about 1301.6549189972.

Adding to 2205401125 its reverse (5211045022), we get a palindrome (7416446147).

The spelling of 2205401125 in words is "two billion, two hundred five million, four hundred one thousand, one hundred twenty-five".

Divisors: 1 5 25 125 17643209 88216045 441080225 2205401125