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30141161 is a prime number
BaseRepresentation
bin111001011111…
…0101011101001
32002201022220022
41302332223221
530204004121
62554010225
7514124051
oct162765351
962638808
1030141161
1116017556
12a116975
13632430b
144008561
1529a5aab
hex1cbeae9

30141161 has 2 divisors, whose sum is σ = 30141162. Its totient is φ = 30141160.

The previous prime is 30141157. The next prime is 30141169. The reversal of 30141161 is 16114103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26832400 + 3308761 = 5180^2 + 1819^2 .

It is a cyclic number.

It is not a de Polignac number, because 30141161 - 22 = 30141157 is a prime.

It is not a weakly prime, because it can be changed into another prime (30141169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15070580 + 15070581.

It is an arithmetic number, because the mean of its divisors is an integer number (15070581).

Almost surely, 230141161 is an apocalyptic number.

It is an amenable number.

30141161 is a deficient number, since it is larger than the sum of its proper divisors (1).

30141161 is an equidigital number, since it uses as much as digits as its factorization.

30141161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 30141161 is about 5490.0966293864. The cubic root of 30141161 is about 311.2098438004.

Adding to 30141161 its reverse (16114103), we get a palindrome (46255264).

The spelling of 30141161 in words is "thirty million, one hundred forty-one thousand, one hundred sixty-one".