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810012412 = 221161301793
BaseRepresentation
bin110000010001111…
…100111011111100
32002110011220010201
4300101330323330
53124330344122
6212213213244
726033664136
oct6021747374
92073156121
10810012412
1138625a350
121a7331224
13cba7a2b1
1479814056
154b1a3a27
hex3047cefc

810012412 has 24 divisors (see below), whose sum is σ = 1571743152. Its totient is φ = 362150400.

The previous prime is 810012397. The next prime is 810012451. The reversal of 810012412 is 214210018.

It is a happy number.

It is a super-2 number, since 2×8100124122 = 1312240215188115488, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 810012412.

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, 148213 + ... + 153580.

It is an arithmetic number, because the mean of its divisors is an integer number (65489298).

Almost surely, 2810012412 is an apocalyptic number.

It is an amenable number.

810012412 is a deficient number, since it is larger than the sum of its proper divisors (761730740).

810012412 is a wasteful number, since it uses less digits than its factorization.

810012412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301869 (or 301867 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 810012412 is about 28460.7169972930. The cubic root of 810012412 is about 932.1745131161.

The spelling of 810012412 in words is "eight hundred ten million, twelve thousand, four hundred twelve".

Divisors: 1 2 4 11 22 44 61 122 244 671 1342 2684 301793 603586 1207172 3319723 6639446 13278892 18409373 36818746 73637492 202503103 405006206 810012412