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814228541 = 7229356713
BaseRepresentation
bin110000100010000…
…010010000111101
32002202010002120122
4300202002100331
53131420303131
6212443424325
726114554100
oct6042022075
92082102518
10814228541
11388679a55
121a88250a5
13cc8c5349
147a1d0737
154b737d7b
hex3088243d

814228541 has 12 divisors (see below), whose sum is σ = 950413212. Its totient is φ = 695515968.

The previous prime is 814228531. The next prime is 814228561. The reversal of 814228541 is 145822418.

It can be written as a sum of positive squares in 2 ways, for example, as 676260025 + 137968516 = 26005^2 + 11746^2 .

It is not a de Polignac number, because 814228541 - 210 = 814227517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (814228511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14000 + ... + 42713.

It is an arithmetic number, because the mean of its divisors is an integer number (79201101).

Almost surely, 2814228541 is an apocalyptic number.

It is an amenable number.

814228541 is a deficient number, since it is larger than the sum of its proper divisors (136184671).

814228541 is a wasteful number, since it uses less digits than its factorization.

814228541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57020 (or 57013 counting only the distinct ones).

The product of its digits is 20480, while the sum is 35.

The square root of 814228541 is about 28534.6901332396. The cubic root of 814228541 is about 933.7890434306.

The spelling of 814228541 in words is "eight hundred fourteen million, two hundred twenty-eight thousand, five hundred forty-one".

Divisors: 1 7 49 293 2051 14357 56713 396991 2778937 16616909 116318363 814228541