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1830044 = 22457511
BaseRepresentation
bin110111110110010011100
310102222100102
412332302130
5432030134
6103120232
721361256
oct6766234
93388312
101830044
11103aa37
12743078
134c0c88
14358cd6
1526237e
hex1bec9c

1830044 has 6 divisors (see below), whose sum is σ = 3202584. Its totient is φ = 915020.

The previous prime is 1830029. The next prime is 1830047. The reversal of 1830044 is 4400381.

It is a super-2 number, since 2×18300442 = 6698122083872, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1829998 and 1830025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1830047) 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 as a sum of consecutive naturals, namely, 228752 + ... + 228759.

It is an arithmetic number, because the mean of its divisors is an integer number (533764).

21830044 is an apocalyptic number.

It is an amenable number.

1830044 is a deficient number, since it is larger than the sum of its proper divisors (1372540).

1830044 is a wasteful number, since it uses less digits than its factorization.

1830044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457515 (or 457513 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1830044 is about 1352.7911886171. The cubic root of 1830044 is about 122.3171003728.

The spelling of 1830044 in words is "one million, eight hundred thirty thousand, forty-four".

Divisors: 1 2 4 457511 915022 1830044