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30242823 = 313898713
BaseRepresentation
bin111001101011…
…1100000000111
32002220111100120
41303113200013
530220232243
63000113023
7515026332
oct163274007
962814316
1030242823
1116086976
12a165773
13635b680
144033619
1529c5c83
hex1cd7807

30242823 has 16 divisors (see below), whose sum is σ = 43918560. Its totient is φ = 18399744.

The previous prime is 30242809. The next prime is 30242831. The reversal of 30242823 is 32824203.

It is not a de Polignac number, because 30242823 - 26 = 30242759 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30242793 and 30242802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30242833) 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 15 ways as a sum of consecutive naturals, for example, 886 + ... + 7827.

It is an arithmetic number, because the mean of its divisors is an integer number (2744910).

Almost surely, 230242823 is an apocalyptic number.

30242823 is a deficient number, since it is larger than the sum of its proper divisors (13675737).

30242823 is a wasteful number, since it uses less digits than its factorization.

30242823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8818.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 30242823 is about 5499.3475067502. The cubic root of 30242823 is about 311.5593405256.

The spelling of 30242823 in words is "thirty million, two hundred forty-two thousand, eight hundred twenty-three".

Divisors: 1 3 13 39 89 267 1157 3471 8713 26139 113269 339807 775457 2326371 10080941 30242823