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1830148 = 221134049
BaseRepresentation
bin110111110110100000100
310102222111021
412332310010
5432031043
6103120524
721361465
oct6766404
93388437
101830148
111040021
12743144
134c1038
14358d6c
152623ed
hex1bed04

1830148 has 12 divisors (see below), whose sum is σ = 3231900. Its totient is φ = 906752.

The previous prime is 1830119. The next prime is 1830163. The reversal of 1830148 is 8410381.

It can be written as a sum of positive squares in 2 ways, for example, as 186624 + 1643524 = 432^2 + 1282^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1573 + ... + 2476.

It is an arithmetic number, because the mean of its divisors is an integer number (269325).

21830148 is an apocalyptic number.

It is an amenable number.

1830148 is a deficient number, since it is larger than the sum of its proper divisors (1401752).

1830148 is a wasteful number, since it uses less digits than its factorization.

1830148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4166 (or 4164 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 1830148 is about 1352.8296271150. The cubic root of 1830148 is about 122.3194173913.

The spelling of 1830148 in words is "one million, eight hundred thirty thousand, one hundred forty-eight".

Divisors: 1 2 4 113 226 452 4049 8098 16196 457537 915074 1830148