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30449055 = 3571322307
BaseRepresentation
bin111010000100…
…1110110011111
32010021222020210
41310021312133
530243332210
63004343503
7516545520
oct164116637
963258223
1030449055
111620790a
12a244b93
1364014c0
144088847
152a16e20
hex1d09d9f

30449055 has 32 divisors (see below), whose sum is σ = 59963904. Its totient is φ = 12848256.

The previous prime is 30449053. The next prime is 30449063. The reversal of 30449055 is 55094403.

It is not a de Polignac number, because 30449055 - 21 = 30449053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30449053) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9789 + ... + 12518.

It is an arithmetic number, because the mean of its divisors is an integer number (1873872).

Almost surely, 230449055 is an apocalyptic number.

30449055 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

30449055 is a deficient number, since it is larger than the sum of its proper divisors (29514849).

30449055 is a wasteful number, since it uses less digits than its factorization.

30449055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22335.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 30449055 is about 5518.0662373698. The cubic root of 30449055 is about 312.2659324567.

The spelling of 30449055 in words is "thirty million, four hundred forty-nine thousand, fifty-five".

Divisors: 1 3 5 7 13 15 21 35 39 65 91 105 195 273 455 1365 22307 66921 111535 156149 289991 334605 468447 780745 869973 1449955 2029937 2342235 4349865 6089811 10149685 30449055