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894137828 = 221812295393
BaseRepresentation
bin110101010010110…
…111010111100100
32022022110220111212
4311102313113210
53312344402303
6224420250552
731105021553
oct6522672744
92268426455
10894137828
11419798a91
1220b540a58
1311332334c
1486a71d9a
155376ead8
hex354b75e4

894137828 has 24 divisors (see below), whose sum is σ = 1580549880. Its totient is φ = 442575360.

The previous prime is 894137821. The next prime is 894137851. The reversal of 894137828 is 828731498.

It can be written as a sum of positive squares in 4 ways, for example, as 281971264 + 612166564 = 16792^2 + 24742^2 .

It is not an unprimeable number, because it can be changed into a prime (894137821) by changing a digit.

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, 163100 + ... + 168492.

It is an arithmetic number, because the mean of its divisors is an integer number (65856245).

Almost surely, 2894137828 is an apocalyptic number.

It is an amenable number.

894137828 is a deficient number, since it is larger than the sum of its proper divisors (686412052).

894137828 is a wasteful number, since it uses less digits than its factorization.

894137828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5807 (or 5805 counting only the distinct ones).

The product of its digits is 774144, while the sum is 50.

The square root of 894137828 is about 29902.1375155690. The cubic root of 894137828 is about 963.3885705114.

The spelling of 894137828 in words is "eight hundred ninety-four million, one hundred thirty-seven thousand, eight hundred twenty-eight".

Divisors: 1 2 4 181 229 362 458 724 916 5393 10786 21572 41449 82898 165796 976133 1234997 1952266 2469994 3904532 4939988 223534457 447068914 894137828