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52720535 = 571979279
BaseRepresentation
bin1100100100011…
…1001110010111
310200012110222102
43021013032113
5101444024120
65121552315
71210055120
oct311071627
9120173872
1052720535
112783979a
12157a569b
13abcb7aa
147005047
154965d75
hex3247397

52720535 has 16 divisors (see below), whose sum is σ = 76108800. Its totient is φ = 34248096.

The previous prime is 52720529. The next prime is 52720541. The reversal of 52720535 is 53502725.

It is an interprime number because it is at equal distance from previous prime (52720529) and next prime (52720541).

It is a cyclic number.

It is not a de Polignac number, because 52720535 - 26 = 52720471 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 52720498 and 52720507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38975 + ... + 40304.

It is an arithmetic number, because the mean of its divisors is an integer number (4756800).

Almost surely, 252720535 is an apocalyptic number.

52720535 is a deficient number, since it is larger than the sum of its proper divisors (23388265).

52720535 is a wasteful number, since it uses less digits than its factorization.

52720535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79310.

The product of its (nonzero) digits is 10500, while the sum is 29.

The square root of 52720535 is about 7260.8907855717. The cubic root of 52720535 is about 374.9671912037.

The spelling of 52720535 in words is "fifty-two million, seven hundred twenty thousand, five hundred thirty-five".

Divisors: 1 5 7 19 35 95 133 665 79279 396395 554953 1506301 2774765 7531505 10544107 52720535