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30040135 = 553113359
BaseRepresentation
bin111001010011…
…0000001000111
32002112012022121
41302212001013
530142241020
62551510411
7513223366
oct162460107
962465277
1030040135
1115a58664
12a088407
1362ba338
143dbd7dd
152985baa
hex1ca6047

30040135 has 8 divisors (see below), whose sum is σ = 36728640. Its totient is φ = 23578464.

The previous prime is 30040133. The next prime is 30040141. The reversal of 30040135 is 53104003.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30040135 - 21 = 30040133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30040133) 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 7 ways as a sum of consecutive naturals, for example, 56415 + ... + 56944.

It is an arithmetic number, because the mean of its divisors is an integer number (4591080).

Almost surely, 230040135 is an apocalyptic number.

30040135 is a deficient number, since it is larger than the sum of its proper divisors (6688505).

30040135 is a wasteful number, since it uses less digits than its factorization.

30040135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113417.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 30040135 is about 5480.8881579540. Note that the first 3 decimals coincide. The cubic root of 30040135 is about 310.8617541562.

Adding to 30040135 its reverse (53104003), we get a palindrome (83144138).

The spelling of 30040135 in words is "thirty million, forty thousand, one hundred thirty-five".

Divisors: 1 5 53 265 113359 566795 6008027 30040135