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30312326 = 2111781049
BaseRepresentation
bin111001110100…
…0011110000110
32010001000200202
41303220132012
530224443301
63001410502
7515436062
oct163503606
963030622
1030312326
1116124110
12a199a32
1363841b5
144050aa2
1529db66b
hex1ce8786

30312326 has 16 divisors (see below), whose sum is σ = 52520400. Its totient is φ = 12967680.

The previous prime is 30312323. The next prime is 30312383. The reversal of 30312326 is 62321303.

It is a junction number, because it is equal to n+sod(n) for n = 30312298 and 30312307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30312323) 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 7 ways as a sum of consecutive naturals, for example, 40151 + ... + 40898.

It is an arithmetic number, because the mean of its divisors is an integer number (3282525).

Almost surely, 230312326 is an apocalyptic number.

30312326 is a deficient number, since it is larger than the sum of its proper divisors (22208074).

30312326 is a wasteful number, since it uses less digits than its factorization.

30312326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81079.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 30312326 is about 5505.6630844976. The cubic root of 30312326 is about 311.7978295229.

Adding to 30312326 its reverse (62321303), we get a palindrome (92633629).

The spelling of 30312326 in words is "thirty million, three hundred twelve thousand, three hundred twenty-six".

Divisors: 1 2 11 17 22 34 187 374 81049 162098 891539 1377833 1783078 2755666 15156163 30312326