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52420304 = 244121949
BaseRepresentation
bin1100011111110…
…1111011010000
310122122020010202
43013331323100
5101404422204
65111314332
71204364606
oct307757320
9118566122
1052420304
1127654172
121567b9a8
13ab24c41
146d67876
154906e1e
hex31fded0

52420304 has 30 divisors (see below), whose sum is σ = 104155350. Its totient is φ = 25557760.

The previous prime is 52420271. The next prime is 52420307. The reversal of 52420304 is 40302425.

It can be written as a sum of positive squares in 3 ways, for example, as 2704 + 52417600 = 52^2 + 7240^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52420307) 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, 25922 + ... + 27870.

It is an arithmetic number, because the mean of its divisors is an integer number (3471845).

Almost surely, 252420304 is an apocalyptic number.

It is an amenable number.

52420304 is a deficient number, since it is larger than the sum of its proper divisors (51735046).

52420304 is a wasteful number, since it uses less digits than its factorization.

52420304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2039 (or 1992 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 52420304 is about 7240.1867379233. The cubic root of 52420304 is about 374.2540525577.

Adding to 52420304 its reverse (40302425), we get a palindrome (92722729).

The spelling of 52420304 in words is "fifty-two million, four hundred twenty thousand, three hundred four".

Divisors: 1 2 4 8 16 41 82 164 328 656 1681 1949 3362 3898 6724 7796 13448 15592 26896 31184 79909 159818 319636 639272 1278544 3276269 6552538 13105076 26210152 52420304