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52780324 = 2218172901
BaseRepresentation
bin1100100101010…
…1110100100100
310200022111222211
43021111310210
5102002432244
65123133204
71210424332
oct311256444
9120274884
1052780324
112787a703
1215814204
13ac1ca7c
14701cb52
154978934
hex3255d24

52780324 has 12 divisors (see below), whose sum is σ = 92877148. Its totient is φ = 26244000.

The previous prime is 52780313. The next prime is 52780327. The reversal of 52780324 is 42308725.

It can be written as a sum of positive squares in 2 ways, for example, as 28965924 + 23814400 = 5382^2 + 4880^2 .

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (52780327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35727 + ... + 37174.

Almost surely, 252780324 is an apocalyptic number.

It is an amenable number.

52780324 is a deficient number, since it is larger than the sum of its proper divisors (40096824).

52780324 is a wasteful number, since it uses less digits than its factorization.

52780324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73086 (or 73084 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 52780324 is about 7265.0068134861. The cubic root of 52780324 is about 375.1088845295.

The spelling of 52780324 in words is "fifty-two million, seven hundred eighty thousand, three hundred twenty-four".

Divisors: 1 2 4 181 362 724 72901 145802 291604 13195081 26390162 52780324