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30530313 = 32111372251
BaseRepresentation
bin111010001110…
…1101100001001
32010110002201100
41310131230021
530303432223
63010212013
7520334442
oct164355411
963402640
1030530313
1116262970
12a284009
13642c498
1440aa2c9
152a31043
hex1d1db09

30530313 has 24 divisors (see below), whose sum is σ = 48481056. Its totient is φ = 18360000.

The previous prime is 30530303. The next prime is 30530327. The reversal of 30530313 is 31303503.

It is not a de Polignac number, because 30530313 - 28 = 30530057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30530303) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 12438 + ... + 14688.

It is an arithmetic number, because the mean of its divisors is an integer number (2020044).

Almost surely, 230530313 is an apocalyptic number.

30530313 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

30530313 is a deficient number, since it is larger than the sum of its proper divisors (17950743).

30530313 is a wasteful number, since it uses less digits than its factorization.

30530313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2405 (or 2402 counting only the distinct ones).

The product of its (nonzero) digits is 405, while the sum is 18.

The square root of 30530313 is about 5525.4242371061. The cubic root of 30530313 is about 312.5434623283.

Adding to 30530313 its reverse (31303503), we get a palindrome (61833816).

The spelling of 30530313 in words is "thirty million, five hundred thirty thousand, three hundred thirteen".

Divisors: 1 3 9 11 33 99 137 411 1233 1507 2251 4521 6753 13563 20259 24761 74283 222849 308387 925161 2775483 3392257 10176771 30530313