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52307447 = 3112911307
BaseRepresentation
bin1100011110001…
…0010111110111
310122102111022212
43013202113313
5101342314242
65105044035
71203414563
oct307422767
9118374285
1052307447
11275873a5
121562661b
13aab576a
146d386a3
1548d3782
hex31e25f7

52307447 has 8 divisors (see below), whose sum is σ = 54077952. Its totient is φ = 50542200.

The previous prime is 52307443. The next prime is 52307461. The reversal of 52307447 is 74470325.

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 52307447 - 22 = 52307443 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52307441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39368 + ... + 40674.

It is an arithmetic number, because the mean of its divisors is an integer number (6759744).

Almost surely, 252307447 is an apocalyptic number.

52307447 is a deficient number, since it is larger than the sum of its proper divisors (1770505).

52307447 is a wasteful number, since it uses less digits than its factorization.

52307447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2629.

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 52307447 is about 7232.3887478481. The cubic root of 52307447 is about 373.9852792399.

The spelling of 52307447 in words is "fifty-two million, three hundred seven thousand, four hundred forty-seven".

Divisors: 1 31 1291 1307 40021 40517 1687337 52307447