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BaseRepresentation
bin111010111011001
31112101101
413113121
51431134
6351401
7153646
oct72731
945341
1030169
1120737
1215561
1310969
158e14
hex75d9

30169 has 2 divisors, whose sum is σ = 30170. Its totient is φ = 30168.

The previous prime is 30161. The next prime is 30181. The reversal of 30169 is 96103.

It can be divided in two parts, 3016 and 9, that added together give a square (3025 = 552).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26569 + 3600 = 163^2 + 60^2 .

It is a cyclic number.

It is not a de Polignac number, because 30169 - 23 = 30161 is a prime.

It is a super-2 number, since 2×301692 = 1820337122, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (30161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15084 + 15085.

It is an arithmetic number, because the mean of its divisors is an integer number (15085).

230169 is an apocalyptic number.

It is an amenable number.

30169 is a deficient number, since it is larger than the sum of its proper divisors (1).

30169 is an equidigital number, since it uses as much as digits as its factorization.

30169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 30169 is about 173.6922565919. The cubic root of 30169 is about 31.1305627601.

The spelling of 30169 in words is "thirty thousand, one hundred sixty-nine".