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30326620 = 2251516331
BaseRepresentation
bin111001110101…
…1111101011100
32010001202022011
41303223331130
530230422440
63002001004
7515525542
oct163537534
963052264
1030326620
1116133925
12a1a6164
13638a85c
144055d92
1529e09ea
hex1cebf5c

30326620 has 12 divisors (see below), whose sum is σ = 63685944. Its totient is φ = 12130640.

The previous prime is 30326617. The next prime is 30326629. The reversal of 30326620 is 2662303.

It is a junction number, because it is equal to n+sod(n) for n = 30326591 and 30326600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30326629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 758146 + ... + 758185.

It is an arithmetic number, because the mean of its divisors is an integer number (5307162).

Almost surely, 230326620 is an apocalyptic number.

It is an amenable number.

30326620 is an abundant number, since it is smaller than the sum of its proper divisors (33359324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30326620 is a wasteful number, since it uses less digits than its factorization.

30326620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1516340 (or 1516338 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 30326620 is about 5506.9610494355. The cubic root of 30326620 is about 311.8468320069.

Adding to 30326620 its reverse (2662303), we get a palindrome (32988923).

The spelling of 30326620 in words is "thirty million, three hundred twenty-six thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 1516331 3032662 6065324 7581655 15163310 30326620