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30245473 = 199716411
BaseRepresentation
bin111001101100…
…0001001100001
32002220121222201
41303120021201
530220323343
63000133201
7515040136
oct163301141
962817881
1030245473
1116088965
12a167201
13635c93b
14403458d
1529c694d
hex1cd8261

30245473 has 8 divisors (see below), whose sum is σ = 32167520. Its totient is φ = 28356480.

The previous prime is 30245471. The next prime is 30245477. The reversal of 30245473 is 37454203.

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 30245473 - 21 = 30245471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30245471) 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, 6363 + ... + 10048.

It is an arithmetic number, because the mean of its divisors is an integer number (4020940).

Almost surely, 230245473 is an apocalyptic number.

It is an amenable number.

30245473 is a deficient number, since it is larger than the sum of its proper divisors (1922047).

30245473 is a wasteful number, since it uses less digits than its factorization.

30245473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16527.

The product of its (nonzero) digits is 10080, while the sum is 28.

The square root of 30245473 is about 5499.5884391471. The cubic root of 30245473 is about 311.5684402949.

Adding to 30245473 its reverse (37454203), we get a palindrome (67699676).

The spelling of 30245473 in words is "thirty million, two hundred forty-five thousand, four hundred seventy-three".

Divisors: 1 19 97 1843 16411 311809 1591867 30245473