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52745120 = 255329657
BaseRepresentation
bin1100100100110…
…1001110100000
310200020201200222
43021031032200
5102000320440
65122302212
71210216601
oct311151640
9120221628
1052745120
112785620a
12157b7968
13ac09a3c
14700dda8
15496d2b5
hex324d3a0

52745120 has 24 divisors (see below), whose sum is σ = 124610724. Its totient is φ = 21097984.

The previous prime is 52745117. The next prime is 52745131. The reversal of 52745120 is 2154725.

It can be written as a sum of positive squares in 2 ways, for example, as 50751376 + 1993744 = 7124^2 + 1412^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 52745120.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 164669 + ... + 164988.

Almost surely, 252745120 is an apocalyptic number.

It is an amenable number.

52745120 is an abundant number, since it is smaller than the sum of its proper divisors (71865604).

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

52745120 is a wasteful number, since it uses less digits than its factorization.

52745120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329672 (or 329664 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 52745120 is about 7262.5835623420. The cubic root of 52745120 is about 375.0254679000.

Adding to 52745120 its reverse (2154725), we get a palindrome (54899845).

The spelling of 52745120 in words is "fifty-two million, seven hundred forty-five thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 329657 659314 1318628 1648285 2637256 3296570 5274512 6593140 10549024 13186280 26372560 52745120