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30055001 is a prime number
BaseRepresentation
bin111001010100…
…1101001011001
32002112221201012
41302221221121
530143230001
62552103305
7513314624
oct162515131
962487635
1030055001
1115a68849
12a094b35
1362c4032
143dc4dbb
15298a2bb
hex1ca9a59

30055001 has 2 divisors, whose sum is σ = 30055002. Its totient is φ = 30055000.

The previous prime is 30054977. The next prime is 30055021. The reversal of 30055001 is 10055003.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16000000 + 14055001 = 4000^2 + 3749^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30055001 is a prime.

It is a super-2 number, since 2×300550012 = 1806606170220002, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30055021) 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 as a sum of consecutive naturals, namely, 15027500 + 15027501.

It is an arithmetic number, because the mean of its divisors is an integer number (15027501).

Almost surely, 230055001 is an apocalyptic number.

It is an amenable number.

30055001 is a deficient number, since it is larger than the sum of its proper divisors (1).

30055001 is an equidigital number, since it uses as much as digits as its factorization.

30055001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75, while the sum is 14.

The square root of 30055001 is about 5482.2441572772. The cubic root of 30055001 is about 310.9130245509.

The spelling of 30055001 in words is "thirty million, fifty-five thousand, one".