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52839609 = 347499751
BaseRepresentation
bin1100100110010…
…0010010111001
310200102112022120
43021210102321
5102011331414
65124311453
71211062224
oct311442271
9120375276
1052839609
11279101a9
1215842589
13ac40a54
1470365bb
15498b2a9
hex32644b9

52839609 has 16 divisors (see below), whose sum is σ = 72192000. Its totient is φ = 34362000.

The previous prime is 52839607. The next prime is 52839613. The reversal of 52839609 is 90693825.

It is not a de Polignac number, because 52839609 - 21 = 52839607 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52839607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69984 + ... + 70734.

It is an arithmetic number, because the mean of its divisors is an integer number (4512000).

Almost surely, 252839609 is an apocalyptic number.

It is an amenable number.

52839609 is a deficient number, since it is larger than the sum of its proper divisors (19352391).

52839609 is a wasteful number, since it uses less digits than its factorization.

52839609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1300.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 52839609 is about 7269.0858434882. The cubic root of 52839609 is about 375.2492778137.

The spelling of 52839609 in words is "fifty-two million, eight hundred thirty-nine thousand, six hundred nine".

Divisors: 1 3 47 141 499 751 1497 2253 23453 35297 70359 105891 374749 1124247 17613203 52839609