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30530355 = 3571109263
BaseRepresentation
bin111010001110…
…1101100110011
32010110002202220
41310131230303
530303432410
63010212123
7520334532
oct164355463
963402686
1030530355
11162629a9
12a284043
13642c4cb
1440aa319
152a31070
hex1d1db33

30530355 has 32 divisors (see below), whose sum is σ = 50181120. Its totient is φ = 15845760.

The previous prime is 30530347. The next prime is 30530393. The reversal of 30530355 is 55303503.

It is not a de Polignac number, because 30530355 - 23 = 30530347 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 115954 + ... + 116216.

It is an arithmetic number, because the mean of its divisors is an integer number (1568160).

Almost surely, 230530355 is an apocalyptic number.

30530355 is a deficient number, since it is larger than the sum of its proper divisors (19650765).

30530355 is a wasteful number, since it uses less digits than its factorization.

30530355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451.

The product of its (nonzero) digits is 3375, while the sum is 24.

The square root of 30530355 is about 5525.4280377180. The cubic root of 30530355 is about 312.5436056484.

Adding to 30530355 its reverse (55303503), we get a palindrome (85833858).

The spelling of 30530355 in words is "thirty million, five hundred thirty thousand, three hundred fifty-five".

Divisors: 1 3 5 15 71 109 213 263 327 355 545 789 1065 1315 1635 3945 7739 18673 23217 28667 38695 56019 86001 93365 116085 143335 280095 430005 2035357 6106071 10176785 30530355