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53752361 = 1313730181
BaseRepresentation
bin1100110100001…
…1001000101001
310202010220101012
43031003020221
5102230033421
65200033305
71221613265
oct315031051
9122126335
1053752361
1128383a43
1216002835
13b1a0340
1471d30a5
154abb95b
hex3343229

53752361 has 8 divisors (see below), whose sum is σ = 58311624. Its totient is φ = 49253760.

The previous prime is 53752339. The next prime is 53752367. The reversal of 53752361 is 16325735.

It can be written as a sum of positive squares in 4 ways, for example, as 2544025 + 51208336 = 1595^2 + 7156^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53752361 - 26 = 53752297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53752367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13310 + ... + 16871.

It is an arithmetic number, because the mean of its divisors is an integer number (7288953).

Almost surely, 253752361 is an apocalyptic number.

It is an amenable number.

53752361 is a deficient number, since it is larger than the sum of its proper divisors (4559263).

53752361 is a wasteful number, since it uses less digits than its factorization.

53752361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30331.

The product of its digits is 18900, while the sum is 32.

The square root of 53752361 is about 7331.6001664030. The cubic root of 53752361 is about 377.3976413562.

The spelling of 53752361 in words is "fifty-three million, seven hundred fifty-two thousand, three hundred sixty-one".

Divisors: 1 13 137 1781 30181 392353 4134797 53752361