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30549424 = 242119049
BaseRepresentation
bin111010010001…
…0010110110000
32010111001221011
41310202112300
530310040144
63010440304
7520444243
oct164422660
963431834
1030549424
1116276264
12a293094
1364380a9
1440b325a
152a36a34
hex1d225b0

30549424 has 20 divisors (see below), whose sum is σ = 59476600. Its totient is φ = 15200640.

The previous prime is 30549413. The next prime is 30549427. The reversal of 30549424 is 42494503.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (30549427) 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 3 ways as a sum of consecutive naturals, for example, 1149 + ... + 7900.

It is an arithmetic number, because the mean of its divisors is an integer number (2973830).

Almost surely, 230549424 is an apocalyptic number.

It is an amenable number.

30549424 is a deficient number, since it is larger than the sum of its proper divisors (28927176).

30549424 is a wasteful number, since it uses less digits than its factorization.

30549424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9268 (or 9262 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 30549424 is about 5527.1533360311. The cubic root of 30549424 is about 312.6086627980.

It can be divided in two parts, 305 and 49424, that added together give a square (49729 = 2232).

The spelling of 30549424 in words is "thirty million, five hundred forty-nine thousand, four hundred twenty-four".

Divisors: 1 2 4 8 16 211 422 844 1688 3376 9049 18098 36196 72392 144784 1909339 3818678 7637356 15274712 30549424