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30053447 is a prime number
BaseRepresentation
bin111001010100…
…1010001000111
32002112212120122
41302221101013
530143202242
62552052155
7513310244
oct162512107
962485518
1030053447
1115a67666
12a09405b
1362c3408
143dc45cb
152989ad2
hex1ca9447

30053447 has 2 divisors, whose sum is σ = 30053448. Its totient is φ = 30053446.

The previous prime is 30053389. The next prime is 30053461. The reversal of 30053447 is 74435003.

It is a strong prime.

It is an emirp because it is prime and its reverse (74435003) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30053447 - 216 = 29987911 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 (30053047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15026723 + 15026724.

It is an arithmetic number, because the mean of its divisors is an integer number (15026724).

Almost surely, 230053447 is an apocalyptic number.

30053447 is a deficient number, since it is larger than the sum of its proper divisors (1).

30053447 is an equidigital number, since it uses as much as digits as its factorization.

30053447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 30053447 is about 5482.1024251650. The cubic root of 30053447 is about 310.9076658513.

The spelling of 30053447 in words is "thirty million, fifty-three thousand, four hundred forty-seven".