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812053230 = 23527068441
BaseRepresentation
bin110000011001101…
…111001011101110
32002121000120121120
4300121233023232
53130341200410
6212325041410
726060224062
oct6031571356
92077016546
10812053230
1138742367a
121a7b56266
13cc313191
1479bc5aa2
154b458570
hex3066f2ee

812053230 has 16 divisors (see below), whose sum is σ = 1948927824. Its totient is φ = 216547520.

The previous prime is 812053183. The next prime is 812053247. The reversal of 812053230 is 32350218.

It is a self number, because there is not a number n which added to its sum of digits gives 812053230.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13534191 + ... + 13534250.

It is an arithmetic number, because the mean of its divisors is an integer number (121807989).

Almost surely, 2812053230 is an apocalyptic number.

812053230 is an abundant number, since it is smaller than the sum of its proper divisors (1136874594).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

812053230 is a wasteful number, since it uses less digits than its factorization.

812053230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27068451.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 812053230 is about 28496.5476856408. The cubic root of 812053230 is about 932.9567246143.

The spelling of 812053230 in words is "eight hundred twelve million, fifty-three thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 27068441 54136882 81205323 135342205 162410646 270684410 406026615 812053230