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30753055 = 513944249
BaseRepresentation
bin111010101010…
…0000100011111
32010212102021001
41311110010133
530333044210
63015051131
7522253024
oct165240437
963772231
1030753055
11163a5253
12a370aa7
1364a9998
14412754b
152a7703a
hex1d5411f

30753055 has 8 divisors (see below), whose sum is σ = 37170000. Its totient is φ = 24424896.

The previous prime is 30753053. The next prime is 30753061. The reversal of 30753055 is 55035703.

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 30753055 - 21 = 30753053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30753053) 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 7 ways as a sum of consecutive naturals, for example, 21430 + ... + 22819.

It is an arithmetic number, because the mean of its divisors is an integer number (4646250).

Almost surely, 230753055 is an apocalyptic number.

30753055 is a deficient number, since it is larger than the sum of its proper divisors (6416945).

30753055 is a wasteful number, since it uses less digits than its factorization.

30753055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44393.

The product of its (nonzero) digits is 7875, while the sum is 28.

The square root of 30753055 is about 5545.5437064367. The cubic root of 30753055 is about 313.3017025814.

Adding to 30753055 its reverse (55035703), we get a palindrome (85788758).

The spelling of 30753055 in words is "thirty million, seven hundred fifty-three thousand, fifty-five".

Divisors: 1 5 139 695 44249 221245 6150611 30753055