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812424141 = 33131229693
BaseRepresentation
bin110000011011001…
…001101111001101
32002121201102102000
4300123021233031
53130440033031
6212341022513
726063330334
oct6033115715
92077642360
10812424141
11387657311
121a80b4a39
13cc412c59
1479c80d1b
154b4cd3e6
hex306c9bcd

812424141 has 16 divisors (see below), whose sum is σ = 1212784320. Its totient is φ = 537479280.

The previous prime is 812424131. The next prime is 812424149. The reversal of 812424141 is 141424218.

812424141 is a `hidden beast` number, since 8 + 1 + 242 + 414 + 1 = 666.

It is not a de Polignac number, because 812424141 - 26 = 812424077 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812424149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111310 + ... + 118383.

It is an arithmetic number, because the mean of its divisors is an integer number (75799020).

Almost surely, 2812424141 is an apocalyptic number.

It is an amenable number.

812424141 is a deficient number, since it is larger than the sum of its proper divisors (400360179).

812424141 is a wasteful number, since it uses less digits than its factorization.

812424141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229833 (or 229827 counting only the distinct ones).

The product of its digits is 2048, while the sum is 27.

The square root of 812424141 is about 28503.0549415321. The cubic root of 812424141 is about 933.0987478324.

Adding to 812424141 its reverse (141424218), we get a palindrome (953848359).

The spelling of 812424141 in words is "eight hundred twelve million, four hundred twenty-four thousand, one hundred forty-one".

Divisors: 1 3 9 27 131 393 1179 3537 229693 689079 2067237 6201711 30089783 90269349 270808047 812424141