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47302285 = 514963493
BaseRepresentation
bin1011010001110…
…0011010001101
310022000012112111
42310130122031
544102133120
64405504021
71113030352
oct264343215
9108005474
1047302285
11247789a8
1213a12011
139a52524
1463d4629
15424575a
hex2d1c68d

47302285 has 8 divisors (see below), whose sum is σ = 57144600. Its totient is φ = 37587264.

The previous prime is 47302273. The next prime is 47302289. The reversal of 47302285 is 58220374.

47302285 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1901641 + 45400644 = 1379^2 + 6738^2 .

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 47302285 - 211 = 47300237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47302289) 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 7 ways as a sum of consecutive naturals, for example, 31002 + ... + 32491.

It is an arithmetic number, because the mean of its divisors is an integer number (7143075).

Almost surely, 247302285 is an apocalyptic number.

It is an amenable number.

47302285 is a deficient number, since it is larger than the sum of its proper divisors (9842315).

47302285 is a wasteful number, since it uses less digits than its factorization.

47302285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63647.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 47302285 is about 6877.6656650349. The cubic root of 47302285 is about 361.6546389236.

The spelling of 47302285 in words is "forty-seven million, three hundred two thousand, two hundred eighty-five".

Divisors: 1 5 149 745 63493 317465 9460457 47302285