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30042744 = 2336120521
BaseRepresentation
bin111001010011…
…0101001111000
32002112022220020
41302212221320
530142331434
62551530440
7513234114
oct162465170
962468806
1030042744
1115a5a616
12a089a20
1362bb594
143dc0744
152986849
hex1ca6a78

30042744 has 32 divisors (see below), whose sum is σ = 76341840. Its totient is φ = 9849600.

The previous prime is 30042737. The next prime is 30042773. The reversal of 30042744 is 44724003.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

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, 8797 + ... + 11724.

Almost surely, 230042744 is an apocalyptic number.

It is an amenable number.

30042744 is an abundant number, since it is smaller than the sum of its proper divisors (46299096).

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

30042744 is a wasteful number, since it uses less digits than its factorization.

30042744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20591 (or 20587 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 24.

The square root of 30042744 is about 5481.1261616569. The cubic root of 30042744 is about 310.8707533927.

Adding to 30042744 its reverse (44724003), we get a palindrome (74766747).

The spelling of 30042744 in words is "thirty million, forty-two thousand, seven hundred forty-four".

Divisors: 1 2 3 4 6 8 12 24 61 122 183 244 366 488 732 1464 20521 41042 61563 82084 123126 164168 246252 492504 1251781 2503562 3755343 5007124 7510686 10014248 15021372 30042744