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30530319 = 331328283
BaseRepresentation
bin111010001110…
…1101100001111
32010110002201120
41310131230033
530303432234
63010212023
7520334451
oct164355417
963402646
1030530319
1116262976
12a284013
13642c4a1
1440aa2d1
152a31049
hex1d1db0f

30530319 has 8 divisors (see below), whose sum is σ = 42020352. Its totient is φ = 19696920.

The previous prime is 30530303. The next prime is 30530327. The reversal of 30530319 is 91303503.

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

It is not a de Polignac number, because 30530319 - 24 = 30530303 is a prime.

It is a super-2 number, since 2×305303192 = 1864200756483522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30530399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164049 + ... + 164234.

It is an arithmetic number, because the mean of its divisors is an integer number (5252544).

Almost surely, 230530319 is an apocalyptic number.

30530319 is a deficient number, since it is larger than the sum of its proper divisors (11490033).

30530319 is a wasteful number, since it uses less digits than its factorization.

30530319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328317.

The product of its (nonzero) digits is 1215, while the sum is 24.

The square root of 30530319 is about 5525.4247800509. The cubic root of 30530319 is about 312.5434828026.

The spelling of 30530319 in words is "thirty million, five hundred thirty thousand, three hundred nineteen".

Divisors: 1 3 31 93 328283 984849 10176773 30530319