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52649705 = 537284593
BaseRepresentation
bin1100100011010…
…1111011101001
310200001212211002
43020311323221
5101434242310
65120244345
71206341453
oct310657351
9120055732
1052649705
11277a0559
12157706b5
13aba5494
146dc72d3
15494eda5
hex3235ee9

52649705 has 8 divisors (see below), whose sum is σ = 64887432. Its totient is φ = 40981248.

The previous prime is 52649693. The next prime is 52649747. The reversal of 52649705 is 50794625.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5053504 + 47596201 = 2248^2 + 6899^2 .

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 52649705 - 212 = 52645609 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142112 + ... + 142481.

It is an arithmetic number, because the mean of its divisors is an integer number (8110929).

Almost surely, 252649705 is an apocalyptic number.

It is an amenable number.

52649705 is a deficient number, since it is larger than the sum of its proper divisors (12237727).

52649705 is a wasteful number, since it uses less digits than its factorization.

52649705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284635.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 52649705 is about 7256.0116455254. The cubic root of 52649705 is about 374.7991932310.

The spelling of 52649705 in words is "fifty-two million, six hundred forty-nine thousand, seven hundred five".

Divisors: 1 5 37 185 284593 1422965 10529941 52649705