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30102211 is a prime number
BaseRepresentation
bin111001011010…
…1001011000011
32002122100110201
41302311023003
530201232321
62553110031
7513602356
oct162651303
962570421
1030102211
1115aa0267
12a0b8317
13630c679
143dd829d
152999291
hex1cb52c3

30102211 has 2 divisors, whose sum is σ = 30102212. Its totient is φ = 30102210.

The previous prime is 30102199. The next prime is 30102221. The reversal of 30102211 is 11220103.

It is an a-pointer prime, because the next prime (30102221) can be obtained adding 30102211 to its sum of digits (10).

It is a strong prime.

It is an emirp because it is prime and its reverse (11220103) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30102211 - 213 = 30094019 is a prime.

It is a super-2 number, since 2×301022112 = 1812286214177042, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30102221) 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, 15051105 + 15051106.

It is an arithmetic number, because the mean of its divisors is an integer number (15051106).

Almost surely, 230102211 is an apocalyptic number.

30102211 is a deficient number, since it is larger than the sum of its proper divisors (1).

30102211 is an equidigital number, since it uses as much as digits as its factorization.

30102211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 30102211 is about 5486.5481862461. The cubic root of 30102211 is about 311.0757320833.

Adding to 30102211 its reverse (11220103), we get a palindrome (41322314).

The spelling of 30102211 in words is "thirty million, one hundred two thousand, two hundred eleven".