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30242564 = 2211687331
BaseRepresentation
bin111001101011…
…1011100000100
32002220110222222
41303113130010
530220230224
63000111512
7515025512
oct163273404
962813888
1030242564
1116086760
12a165598
13635b511
1440334b2
1529c5b5e
hex1cd7704

30242564 has 12 divisors (see below), whose sum is σ = 57735888. Its totient is φ = 13746600.

The previous prime is 30242549. The next prime is 30242567. The reversal of 30242564 is 46524203.

It is a super-2 number, since 2×302425642 = 1829225354588192, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30242567) 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 3 ways as a sum of consecutive naturals, for example, 343622 + ... + 343709.

It is an arithmetic number, because the mean of its divisors is an integer number (4811324).

Almost surely, 230242564 is an apocalyptic number.

It is an amenable number.

30242564 is a deficient number, since it is larger than the sum of its proper divisors (27493324).

30242564 is a wasteful number, since it uses less digits than its factorization.

30242564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687346 (or 687344 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 30242564 is about 5499.3239584516. The cubic root of 30242564 is about 311.5584511234.

Adding to 30242564 its reverse (46524203), we get a palindrome (76766767).

The spelling of 30242564 in words is "thirty million, two hundred forty-two thousand, five hundred sixty-four".

Divisors: 1 2 4 11 22 44 687331 1374662 2749324 7560641 15121282 30242564