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52312017 = 317437339
BaseRepresentation
bin1100011110001…
…1011111010001
310122102201121010
43013203133101
5101342441032
65105121133
71203434112
oct307433721
9118381533
1052312017
112758a87a
12156291a9
13aab7874
146d3a209
1548d4ccc
hex31e37d1

52312017 has 4 divisors (see below), whose sum is σ = 69749360. Its totient is φ = 34874676.

The previous prime is 52311991. The next prime is 52312021. The reversal of 52312017 is 71021325.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 52312017 - 28 = 52311761 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52311984 and 52312002.

It is not an unprimeable number, because it can be changed into a prime (52312067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8718667 + ... + 8718672.

It is an arithmetic number, because the mean of its divisors is an integer number (17437340).

Almost surely, 252312017 is an apocalyptic number.

It is an amenable number.

52312017 is a deficient number, since it is larger than the sum of its proper divisors (17437343).

52312017 is a wasteful number, since it uses less digits than its factorization.

52312017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17437342.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 52312017 is about 7232.7046808231. The cubic root of 52312017 is about 373.9961703784.

The spelling of 52312017 in words is "fifty-two million, three hundred twelve thousand, seventeen".

Divisors: 1 3 17437339 52312017