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52030447 = 77432921
BaseRepresentation
bin1100011001111…
…0101111101111
310121220102100121
43012132233233
5101304433242
65055105411
71201152160
oct306365757
9117812317
1052030447
1127408277
1215512267
13aa19661
146ca5767
15487b667
hex319ebef

52030447 has 4 divisors (see below), whose sum is σ = 59463376. Its totient is φ = 44597520.

The previous prime is 52030411. The next prime is 52030481. The reversal of 52030447 is 74403025.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-52030447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52030247) 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, 3716454 + ... + 3716467.

It is an arithmetic number, because the mean of its divisors is an integer number (14865844).

Almost surely, 252030447 is an apocalyptic number.

52030447 is a deficient number, since it is larger than the sum of its proper divisors (7432929).

52030447 is an equidigital number, since it uses as much as digits as its factorization.

52030447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7432928.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 52030447 is about 7213.2133616024. The cubic root of 52030447 is about 373.3239500370.

The spelling of 52030447 in words is "fifty-two million, thirty thousand, four hundred forty-seven".

Divisors: 1 7 7432921 52030447