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475650221 is a prime number
BaseRepresentation
bin11100010110011…
…101100010101101
31020011000112102212
4130112131202231
51433231301341
6115110500205
714533650224
oct3426354255
91204015385
10475650221
11224546062
12113364665
137770ab47
1447257cbb
152bb585eb
hex1c59d8ad

475650221 has 2 divisors, whose sum is σ = 475650222. Its totient is φ = 475650220.

The previous prime is 475650193. The next prime is 475650251. The reversal of 475650221 is 122056574.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 424813321 + 50836900 = 20611^2 + 7130^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-475650221 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (475650251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237825110 + 237825111.

It is an arithmetic number, because the mean of its divisors is an integer number (237825111).

Almost surely, 2475650221 is an apocalyptic number.

It is an amenable number.

475650221 is a deficient number, since it is larger than the sum of its proper divisors (1).

475650221 is an equidigital number, since it uses as much as digits as its factorization.

475650221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 475650221 is about 21809.4067090327. The cubic root of 475650221 is about 780.6012354317.

The spelling of 475650221 in words is "four hundred seventy-five million, six hundred fifty thousand, two hundred twenty-one".