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30331055 = 524125171
BaseRepresentation
bin111001110110…
…1000010101111
32010001222101102
41303231002233
530231043210
63002033315
7515544506
oct163550257
963058342
1030331055
1116137197
12a1a883b
13638c891
14405783d
1529e1ea5
hex1ced0af

30331055 has 8 divisors (see below), whose sum is σ = 36549744. Its totient is φ = 24163200.

The previous prime is 30331033. The next prime is 30331061. The reversal of 30331055 is 55013303.

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

It is not a de Polignac number, because 30331055 - 28 = 30330799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11381 + ... + 13790.

It is an arithmetic number, because the mean of its divisors is an integer number (4568718).

Almost surely, 230331055 is an apocalyptic number.

30331055 is a deficient number, since it is larger than the sum of its proper divisors (6218689).

30331055 is a wasteful number, since it uses less digits than its factorization.

30331055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25417.

The product of its (nonzero) digits is 675, while the sum is 20.

The square root of 30331055 is about 5507.3637068928. The cubic root of 30331055 is about 311.8620328797.

Adding to 30331055 its reverse (55013303), we get a palindrome (85344358).

The spelling of 30331055 in words is "thirty million, three hundred thirty-one thousand, fifty-five".

Divisors: 1 5 241 1205 25171 125855 6066211 30331055