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30104272 = 2411171047
BaseRepresentation
bin111001011010…
…1101011010000
32002122110022001
41302311223100
530201314042
62553123344
7513611362
oct162655320
962573261
1030104272
1115aa1870
12a0b9554
1363105a3
143dd8d32
152999bb7
hex1cb5ad0

30104272 has 20 divisors (see below), whose sum is σ = 63629856. Its totient is φ = 13683680.

The previous prime is 30104231. The next prime is 30104281. The reversal of 30104272 is 27240103.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 85348 + ... + 85699.

Almost surely, 230104272 is an apocalyptic number.

It is an amenable number.

30104272 is an abundant number, since it is smaller than the sum of its proper divisors (33525584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30104272 is a wasteful number, since it uses less digits than its factorization.

30104272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171066 (or 171060 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 30104272 is about 5486.7360060422. The cubic root of 30104272 is about 311.0828313675.

Adding to 30104272 its reverse (27240103), we get a palindrome (57344375).

The spelling of 30104272 in words is "thirty million, one hundred four thousand, two hundred seventy-two".

Divisors: 1 2 4 8 11 16 22 44 88 176 171047 342094 684188 1368376 1881517 2736752 3763034 7526068 15052136 30104272