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810228270 = 23527007609
BaseRepresentation
bin110000010010110…
…001101000101110
32002110120212020110
4300102301220232
53124404301040
6212222000450
726035553355
oct6022615056
92073525213
10810228270
11386397545
121a7416126
13cbb24617
147986c99c
154b1e7980
hex304b1a2e

810228270 has 16 divisors (see below), whose sum is σ = 1944547920. Its totient is φ = 216060864.

The previous prime is 810228247. The next prime is 810228281. The reversal of 810228270 is 72822018.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 27007609 = 810228270 / (8 + 1 + 0 + 2 + 2 + 8 + 2 + 7 + 0).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 13503775 + ... + 13503834.

It is an arithmetic number, because the mean of its divisors is an integer number (121534245).

Almost surely, 2810228270 is an apocalyptic number.

810228270 is an abundant number, since it is smaller than the sum of its proper divisors (1134319650).

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

810228270 is a wasteful number, since it uses less digits than its factorization.

810228270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27007619.

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 810228270 is about 28464.5089541344. The cubic root of 810228270 is about 932.2573099769.

The spelling of 810228270 in words is "eight hundred ten million, two hundred twenty-eight thousand, two hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 27007609 54015218 81022827 135038045 162045654 270076090 405114135 810228270