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1730105225 = 52109634901
BaseRepresentation
bin110011100011111…
…0100111110001001
311110120111110012022
41213013310332021
512020401331400
6443402054225
760605436362
oct14707647611
94416443168
101730105225
11808665732
124034aa375
1321758a404
14125ac0b69
15a1d4db85
hex671f4f89

1730105225 has 12 divisors (see below), whose sum is σ = 2165015820. Its totient is φ = 1371384000.

The previous prime is 1730105197. The next prime is 1730105227. The reversal of 1730105225 is 5225010371.

It can be written as a sum of positive squares in 6 ways, for example, as 75568249 + 1654536976 = 8693^2 + 40676^2 .

It is not a de Polignac number, because 1730105225 - 28 = 1730104969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1730105194 and 1730105203.

It is not an unprimeable number, because it can be changed into a prime (1730105227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 314726 + ... + 320175.

It is an arithmetic number, because the mean of its divisors is an integer number (180417985).

Almost surely, 21730105225 is an apocalyptic number.

It is an amenable number.

1730105225 is a deficient number, since it is larger than the sum of its proper divisors (434910595).

1730105225 is a wasteful number, since it uses less digits than its factorization.

1730105225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635020 (or 635015 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 1730105225 is about 41594.5335951733. The cubic root of 1730105225 is about 1200.4871228345.

Adding to 1730105225 its reverse (5225010371), we get a palindrome (6955115596).

The spelling of 1730105225 in words is "one billion, seven hundred thirty million, one hundred five thousand, two hundred twenty-five".

Divisors: 1 5 25 109 545 2725 634901 3174505 15872525 69204209 346021045 1730105225