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52772004 = 22321465889
BaseRepresentation
bin1100100101001…
…1110010100100
310200022002120200
43021103302210
5102002201004
65123030500
71210361145
oct311236244
9120262520
1052772004
112787442a
121580b430
13ac1904c
147019acc
154976239
hex3253ca4

52772004 has 18 divisors (see below), whose sum is σ = 133395990. Its totient is φ = 17590656.

The previous prime is 52772003. The next prime is 52772021. The reversal of 52772004 is 40027725.

It can be written as a sum of positive squares in only one way, i.e., 49702500 + 3069504 = 7050^2 + 1752^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (52772003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 732909 + ... + 732980.

Almost surely, 252772004 is an apocalyptic number.

It is an amenable number.

52772004 is an abundant number, since it is smaller than the sum of its proper divisors (80623986).

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

52772004 is a wasteful number, since it uses less digits than its factorization.

52772004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1465899 (or 1465894 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 52772004 is about 7264.4341830593. The cubic root of 52772004 is about 375.0891734599.

Adding to 52772004 its reverse (40027725), we get a palindrome (92799729).

The spelling of 52772004 in words is "fifty-two million, seven hundred seventy-two thousand, four".

Divisors: 1 2 3 4 6 9 12 18 36 1465889 2931778 4397667 5863556 8795334 13193001 17590668 26386002 52772004