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82361428 = 2219257037
BaseRepresentation
bin1001110100010…
…11110001010100
312201222101122021
410322023301110
5132041031203
612101142524
72020026532
oct472136124
9181871567
1082361428
11425443a6
12236baa44
13140a9196
14ad1d152
15736d5bd
hex4e8bc54

82361428 has 18 divisors (see below), whose sum is σ = 152120346. Its totient is φ = 39012624.

The previous prime is 82361387. The next prime is 82361441. The reversal of 82361428 is 82416328.

It can be written as a sum of positive squares in only one way, i.e., 51581124 + 30780304 = 7182^2 + 5548^2 .

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 82361393 and 82361402.

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 5 ways as a sum of consecutive naturals, for example, 27075 + ... + 29962.

Almost surely, 282361428 is an apocalyptic number.

It is an amenable number.

82361428 is a deficient number, since it is larger than the sum of its proper divisors (69758918).

82361428 is a wasteful number, since it uses less digits than its factorization.

82361428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57079 (or 57058 counting only the distinct ones).

The product of its digits is 18432, while the sum is 34.

The square root of 82361428 is about 9075.3197188859. The cubic root of 82361428 is about 435.0855127611.

The spelling of 82361428 in words is "eighty-two million, three hundred sixty-one thousand, four hundred twenty-eight".

Divisors: 1 2 4 19 38 76 361 722 1444 57037 114074 228148 1083703 2167406 4334812 20590357 41180714 82361428