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52045372 = 2229448667
BaseRepresentation
bin1100011010001…
…0011000111100
310121221011211101
43012202120330
5101310422442
65055302444
71201243531
oct306423074
9117834741
1052045372
1127418505
121551aa24
13aa233a2
146caad88
154880cb7
hex31a263c

52045372 has 12 divisors (see below), whose sum is σ = 94220280. Its totient is φ = 25125296.

The previous prime is 52045369. The next prime is 52045379. The reversal of 52045372 is 27354025.

It is a self number, because there is not a number n which added to its sum of digits gives 52045372.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52045379) 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, 224218 + ... + 224449.

It is an arithmetic number, because the mean of its divisors is an integer number (7851690).

Almost surely, 252045372 is an apocalyptic number.

It is an amenable number.

52045372 is a deficient number, since it is larger than the sum of its proper divisors (42174908).

52045372 is a wasteful number, since it uses less digits than its factorization.

52045372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448700 (or 448698 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 52045372 is about 7214.2478471425. The cubic root of 52045372 is about 373.3596427746.

Adding to 52045372 its reverse (27354025), we get a palindrome (79399397).

The spelling of 52045372 in words is "fifty-two million, forty-five thousand, three hundred seventy-two".

Divisors: 1 2 4 29 58 116 448667 897334 1794668 13011343 26022686 52045372