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1804212430 = 25202789009
BaseRepresentation
bin110101110001010…
…0001100011001110
311122201221111011121
41223202201203032
512143334244210
6455010311154
762465360356
oct15342414316
94581844147
101804212430
11846481559
124242884ba
13229a36527
14131891b66
15a85db6da
hex6b8a18ce

1804212430 has 16 divisors (see below), whose sum is σ = 3249221040. Its totient is φ = 721320832.

The previous prime is 1804212413. The next prime is 1804212439. The reversal of 1804212430 is 342124081.

It is a junction number, because it is equal to n+sod(n) for n = 1804212395 and 1804212404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1804212439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24235 + ... + 64774.

It is an arithmetic number, because the mean of its divisors is an integer number (203076315).

Almost surely, 21804212430 is an apocalyptic number.

1804212430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1804212430 is a deficient number, since it is larger than the sum of its proper divisors (1445008610).

1804212430 is a wasteful number, since it uses less digits than its factorization.

1804212430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91043.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 1804212430 is about 42476.0218240833. The cubic root of 1804212430 is about 1217.3885802181.

The spelling of 1804212430 in words is "one billion, eight hundred four million, two hundred twelve thousand, four hundred thirty".

Divisors: 1 2 5 10 2027 4054 10135 20270 89009 178018 445045 890090 180421243 360842486 902106215 1804212430