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30009485 = 5114312689
BaseRepresentation
bin111001001111…
…0100010001101
32002110122021102
41302132202031
530140300420
62551112445
7513035132
oct162364215
962418242
1030009485
1115a37630
12a072725
1362a93bc
143db2589
15297ba75
hex1c9e88d

30009485 has 16 divisors (see below), whose sum is σ = 40201920. Its totient is φ = 21315840.

The previous prime is 30009481. The next prime is 30009517. The reversal of 30009485 is 58490003.

It is not a de Polignac number, because 30009485 - 22 = 30009481 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30009481) by changing a digit.

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, 3980 + ... + 8709.

It is an arithmetic number, because the mean of its divisors is an integer number (2512620).

Almost surely, 230009485 is an apocalyptic number.

It is an amenable number.

30009485 is a deficient number, since it is larger than the sum of its proper divisors (10192435).

30009485 is a wasteful number, since it uses less digits than its factorization.

30009485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12748.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 30009485 is about 5478.0913646999. The cubic root of 30009485 is about 310.7559939230.

Adding to 30009485 its reverse (58490003), we get a palindrome (88499488).

The spelling of 30009485 in words is "thirty million, nine thousand, four hundred eighty-five".

Divisors: 1 5 11 43 55 215 473 2365 12689 63445 139579 545627 697895 2728135 6001897 30009485