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30002047 is a prime number
BaseRepresentation
bin111001001110…
…0101101111111
32002110021001221
41302130231333
530140031142
62551014211
7513004345
oct162345577
962407057
1030002047
1115a31a89
12a06a367
1362a5bba
143dad995
152979767
hex1c9cb7f

30002047 has 2 divisors, whose sum is σ = 30002048. Its totient is φ = 30002046.

The previous prime is 30002033. The next prime is 30002069. The reversal of 30002047 is 74020003.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30002047 - 27 = 30001919 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30002047.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30002087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15001023 + 15001024.

It is an arithmetic number, because the mean of its divisors is an integer number (15001024).

Almost surely, 230002047 is an apocalyptic number.

30002047 is a deficient number, since it is larger than the sum of its proper divisors (1).

30002047 is an equidigital number, since it uses as much as digits as its factorization.

30002047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 16.

The square root of 30002047 is about 5477.4124365434. The cubic root of 30002047 is about 310.7303176624.

The spelling of 30002047 in words is "thirty million, two thousand, forty-seven".