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30208270 = 253020827
BaseRepresentation
bin111001100111…
…1000100001110
32002211201221211
41303033010032
530213131040
62555245034
7514523521
oct163170416
962751854
1030208270
1116062a14
12a14977a
136348a21
144024bb8
1529ba8ea
hex1ccf10e

30208270 has 8 divisors (see below), whose sum is σ = 54374904. Its totient is φ = 12083304.

The previous prime is 30208261. The next prime is 30208289. The reversal of 30208270 is 7280203.

It is a happy number.

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

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 1510404 + ... + 1510423.

It is an arithmetic number, because the mean of its divisors is an integer number (6796863).

Almost surely, 230208270 is an apocalyptic number.

30208270 is a deficient number, since it is larger than the sum of its proper divisors (24166634).

30208270 is a wasteful number, since it uses less digits than its factorization.

30208270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3020834.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 30208270 is about 5496.2050543989. The cubic root of 30208270 is about 311.4406411529.

Adding to 30208270 its reverse (7280203), we get a palindrome (37488473).

The spelling of 30208270 in words is "thirty million, two hundred eight thousand, two hundred seventy".

Divisors: 1 2 5 10 3020827 6041654 15104135 30208270