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52544020 = 2252627201
BaseRepresentation
bin1100100001110…
…0001000010100
310122212111211211
43020130020110
5101422402040
65114111204
71205421364
oct310341024
9118774754
1052544020
1127729111
121571b504
13ab69349
146d9a9a4
15492d8ea
hex321c214

52544020 has 12 divisors (see below), whose sum is σ = 110342484. Its totient is φ = 21017600.

The previous prime is 52544017. The next prime is 52544071. The reversal of 52544020 is 2044525.

It can be written as a sum of positive squares in 2 ways, for example, as 11737476 + 40806544 = 3426^2 + 6388^2 .

It is a junction number, because it is equal to n+sod(n) for n = 52543982 and 52544000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1313581 + ... + 1313620.

It is an arithmetic number, because the mean of its divisors is an integer number (9195207).

Almost surely, 252544020 is an apocalyptic number.

It is an amenable number.

52544020 is an abundant number, since it is smaller than the sum of its proper divisors (57798464).

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

52544020 is a wasteful number, since it uses less digits than its factorization.

52544020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2627210 (or 2627208 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 52544020 is about 7248.7254052006. The cubic root of 52544020 is about 374.5482441444.

Adding to 52544020 its reverse (2044525), we get a palindrome (54588545).

It can be divided in two parts, 5 and 2544020, that added together give a square (2544025 = 15952).

The spelling of 52544020 in words is "fifty-two million, five hundred forty-four thousand, twenty".

Divisors: 1 2 4 5 10 20 2627201 5254402 10508804 13136005 26272010 52544020