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30663169 = 192237237
BaseRepresentation
bin111010011111…
…0001000000001
32010200211221221
41310332020001
530322210134
63013115041
7521426665
oct164761001
963624857
1030663169
1116343769
12a328a81
136477ab4
1441028a5
152a5a5b4
hex1d3e201

30663169 has 8 divisors (see below), whose sum is σ = 32426240. Its totient is φ = 28915056.

The previous prime is 30663161. The next prime is 30663173. The reversal of 30663169 is 96136603.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30663169 - 23 = 30663161 is a prime.

It is a super-2 number, since 2×306631692 = 1880459866245122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30663161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 619 + ... + 7855.

It is an arithmetic number, because the mean of its divisors is an integer number (4053280).

Almost surely, 230663169 is an apocalyptic number.

It is an amenable number.

30663169 is a deficient number, since it is larger than the sum of its proper divisors (1763071).

30663169 is a wasteful number, since it uses less digits than its factorization.

30663169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7479.

The product of its (nonzero) digits is 17496, while the sum is 34.

The square root of 30663169 is about 5537.4334307511. The cubic root of 30663169 is about 312.9961620042.

The spelling of 30663169 in words is "thirty million, six hundred sixty-three thousand, one hundred sixty-nine".

Divisors: 1 19 223 4237 7237 137503 1613851 30663169