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30109448 = 2317221393
BaseRepresentation
bin111001011011…
…0111100001000
32002122201101202
41302312330020
530202000243
62553203332
7513632435
oct162667410
962581352
1030109448
1115aa5746
12a100548
136312a55
143ddab8c
15299b4b8
hex1cb6f08

30109448 has 16 divisors (see below), whose sum is σ = 59776380. Its totient is φ = 14169088.

The previous prime is 30109423. The next prime is 30109451. The reversal of 30109448 is 84490103.

It can be written as a sum of positive squares in 2 ways, for example, as 27478564 + 2630884 = 5242^2 + 1622^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30109448.

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, 110561 + ... + 110832.

Almost surely, 230109448 is an apocalyptic number.

It is an amenable number.

30109448 is a deficient number, since it is larger than the sum of its proper divisors (29666932).

30109448 is a wasteful number, since it uses less digits than its factorization.

30109448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221416 (or 221412 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 30109448 is about 5487.2076687510. The cubic root of 30109448 is about 311.1006590971.

The spelling of 30109448 in words is "thirty million, one hundred nine thousand, four hundred forty-eight".

Divisors: 1 2 4 8 17 34 68 136 221393 442786 885572 1771144 3763681 7527362 15054724 30109448