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52806609 = 3231189271
BaseRepresentation
bin1100100101110…
…0001111010001
310200100212001100
43021130033101
5102004302414
65123455013
71210564062
oct311341721
9120325040
1052806609
1127898429
1215827469
13ac2ba1b
147028569
154981609
hex325c3d1

52806609 has 12 divisors (see below), whose sum is σ = 78737152. Its totient is φ = 34068600.

The previous prime is 52806601. The next prime is 52806617. The reversal of 52806609 is 90660825.

52806609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (52806601) and next prime (52806617).

It is not a de Polignac number, because 52806609 - 23 = 52806601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52806601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94357 + ... + 94914.

Almost surely, 252806609 is an apocalyptic number.

It is an amenable number.

52806609 is a deficient number, since it is larger than the sum of its proper divisors (25930543).

52806609 is a wasteful number, since it uses less digits than its factorization.

52806609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189308 (or 189305 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 52806609 is about 7266.8156024493. The cubic root of 52806609 is about 375.1711432148.

The spelling of 52806609 in words is "fifty-two million, eight hundred six thousand, six hundred nine".

Divisors: 1 3 9 31 93 279 189271 567813 1703439 5867401 17602203 52806609