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30530396 = 2213587123
BaseRepresentation
bin111010001110…
…1101101011100
32010110002211102
41310131231130
530303433041
63010212232
7520334621
oct164355534
963402742
1030530396
1116262a36
12a284078
13642c530
1440aa348
152a3109b
hex1d1db5c

30530396 has 12 divisors (see below), whose sum is σ = 57538152. Its totient is φ = 14090928.

The previous prime is 30530393. The next prime is 30530399. The reversal of 30530396 is 69303503.

It is an interprime number because it is at equal distance from previous prime (30530393) and next prime (30530399).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30530393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 293510 + ... + 293613.

It is an arithmetic number, because the mean of its divisors is an integer number (4794846).

Almost surely, 230530396 is an apocalyptic number.

It is an amenable number.

30530396 is a deficient number, since it is larger than the sum of its proper divisors (27007756).

30530396 is a wasteful number, since it uses less digits than its factorization.

30530396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587140 (or 587138 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 29.

The square root of 30530396 is about 5525.4317478365. The cubic root of 30530396 is about 312.5437455560.

Adding to 30530396 its reverse (69303503), we get a palindrome (99833899).

The spelling of 30530396 in words is "thirty million, five hundred thirty thousand, three hundred ninety-six".

Divisors: 1 2 4 13 26 52 587123 1174246 2348492 7632599 15265198 30530396