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52812004 = 22722271187
BaseRepresentation
bin1100100101110…
…1100011100100
310200101010110011
43021131203210
5102004441004
65123540004
71210615600
oct311354344
9120333404
1052812004
11278a1493
121582a604
13ac3130b
14702a500
154983004
hex325d8e4

52812004 has 36 divisors (see below), whose sum is σ = 108074736. Its totient is φ = 22515024.

The previous prime is 52811971. The next prime is 52812029. The reversal of 52812004 is 40021825.

52812004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11 ways as a sum of consecutive naturals, for example, 43899 + ... + 45085.

It is an arithmetic number, because the mean of its divisors is an integer number (3002076).

Almost surely, 252812004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52812004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54037368).

52812004 is an abundant number, since it is smaller than the sum of its proper divisors (55262732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52812004 is a wasteful number, since it uses less digits than its factorization.

52812004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1432 (or 1423 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 52812004 is about 7267.1868009567. The cubic root of 52812004 is about 375.1839192633.

Adding to 52812004 its reverse (40021825), we get a palindrome (92833829).

The spelling of 52812004 in words is "fifty-two million, eight hundred twelve thousand, four".

Divisors: 1 2 4 7 14 28 49 98 196 227 454 908 1187 1589 2374 3178 4748 6356 8309 11123 16618 22246 33236 44492 58163 116326 232652 269449 538898 1077796 1886143 3772286 7544572 13203001 26406002 52812004