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1830425 = 52211347
BaseRepresentation
bin110111110111000011001
310102222212112
412332320121
5432033200
6103122105
721362342
oct6767031
93388775
101830425
111040253
12743335
134c11bc
143590c9
15262535
hex1bee19

1830425 has 12 divisors (see below), whose sum is σ = 2287056. Its totient is φ = 1453200.

The previous prime is 1830421. The next prime is 1830431. The reversal of 1830425 is 5240381.

It is not a de Polignac number, because 1830425 - 22 = 1830421 is a prime.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1830425.

It is not an unprimeable number, because it can be changed into a prime (1830421) 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 11 ways as a sum of consecutive naturals, for example, 5102 + ... + 5448.

It is an arithmetic number, because the mean of its divisors is an integer number (190588).

21830425 is an apocalyptic number.

It is an amenable number.

1830425 is a deficient number, since it is larger than the sum of its proper divisors (456631).

1830425 is a wasteful number, since it uses less digits than its factorization.

1830425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568 (or 563 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1830425 is about 1352.9320012477. The cubic root of 1830425 is about 122.3255882528.

The spelling of 1830425 in words is "one million, eight hundred thirty thousand, four hundred twenty-five".

Divisors: 1 5 25 211 347 1055 1735 5275 8675 73217 366085 1830425