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30030545 = 5192831117
BaseRepresentation
bin111001010001…
…1101011010001
32002111201011102
41302203223101
530141434140
62551354145
7513153416
oct162435321
962451142
1030030545
1115a51436
12a082955
1362b5b6c
143dba10d
152982e15
hex1ca3ad1

30030545 has 16 divisors (see below), whose sum is σ = 38101440. Its totient is φ = 22659264.

The previous prime is 30030523. The next prime is 30030557. The reversal of 30030545 is 54503003.

It is a cyclic number.

It is not a de Polignac number, because 30030545 - 212 = 30026449 is a prime.

It is a Curzon 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 15 ways as a sum of consecutive naturals, for example, 26327 + ... + 27443.

It is an arithmetic number, because the mean of its divisors is an integer number (2381340).

Almost surely, 230030545 is an apocalyptic number.

It is an amenable number.

30030545 is a deficient number, since it is larger than the sum of its proper divisors (8070895).

30030545 is a wasteful number, since it uses less digits than its factorization.

30030545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424.

The product of its (nonzero) digits is 900, while the sum is 20.

The square root of 30030545 is about 5480.0132299110. The cubic root of 30030545 is about 310.8286708438.

Adding to 30030545 its reverse (54503003), we get a palindrome (84533548).

The spelling of 30030545 in words is "thirty million, thirty thousand, five hundred forty-five".

Divisors: 1 5 19 95 283 1117 1415 5377 5585 21223 26885 106115 316111 1580555 6006109 30030545