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30117275 = 523138861
BaseRepresentation
bin111001011100…
…0110110011011
32002200010010122
41302320312123
530202223100
62553303455
7513664316
oct162706633
962603118
1030117275
1116000611
12a104b8b
136316496
143ddd97d
15299d985
hex1cb8d9b

30117275 has 12 divisors (see below), whose sum is σ = 38551104. Its totient is φ = 23316000.

The previous prime is 30117259. The next prime is 30117289. The reversal of 30117275 is 57271103.

It is not a de Polignac number, because 30117275 - 24 = 30117259 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18656 + ... + 20205.

It is an arithmetic number, because the mean of its divisors is an integer number (3212592).

Almost surely, 230117275 is an apocalyptic number.

30117275 is a deficient number, since it is larger than the sum of its proper divisors (8433829).

30117275 is a wasteful number, since it uses less digits than its factorization.

30117275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38902 (or 38897 counting only the distinct ones).

The product of its (nonzero) digits is 1470, while the sum is 26.

The square root of 30117275 is about 5487.9208266884. The cubic root of 30117275 is about 311.1276138024.

Adding to 30117275 its reverse (57271103), we get a palindrome (87388378).

It can be divided in two parts, 301 and 17275, that added together give a cube (17576 = 263).

The spelling of 30117275 in words is "thirty million, one hundred seventeen thousand, two hundred seventy-five".

Divisors: 1 5 25 31 155 775 38861 194305 971525 1204691 6023455 30117275