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30011161 is a prime number
BaseRepresentation
bin111001001111…
…0111100011001
32002110201120111
41302132330121
530140324121
62551124321
7513043045
oct162367431
962421514
1030011161
1115a38914
12a0736a1
1362aa0ab
143db3025
15297c2e1
hex1c9ef19

30011161 has 2 divisors, whose sum is σ = 30011162. Its totient is φ = 30011160.

The previous prime is 30011153. The next prime is 30011269. The reversal of 30011161 is 16111003.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26842761 + 3168400 = 5181^2 + 1780^2 .

It is an emirp because it is prime and its reverse (16111003) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30011161 - 23 = 30011153 is a prime.

It is not a weakly prime, because it can be changed into another prime (30011101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15005580 + 15005581.

It is an arithmetic number, because the mean of its divisors is an integer number (15005581).

Almost surely, 230011161 is an apocalyptic number.

It is an amenable number.

30011161 is a deficient number, since it is larger than the sum of its proper divisors (1).

30011161 is an equidigital number, since it uses as much as digits as its factorization.

30011161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 30011161 is about 5478.2443355513. The cubic root of 30011161 is about 310.7617789534.

Adding to 30011161 its reverse (16111003), we get a palindrome (46122164).

The spelling of 30011161 in words is "thirty million, eleven thousand, one hundred sixty-one".