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30040764 = 22313214813
BaseRepresentation
bin111001010011…
…0001010111100
32002112020011220
41302212022330
530142301024
62551513340
7513225255
oct162461274
962466156
1030040764
1115a59086
12a088850
1362ba700
143dbdb2c
152985e79
hex1ca62bc

30040764 has 36 divisors (see below), whose sum is σ = 75906936. Its totient is φ = 9242688.

The previous prime is 30040763. The next prime is 30040799. The reversal of 30040764 is 46704003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30040763) 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 11 ways as a sum of consecutive naturals, for example, 5379 + ... + 9434.

It is an arithmetic number, because the mean of its divisors is an integer number (2108526).

Almost surely, 230040764 is an apocalyptic number.

It is an amenable number.

30040764 is an abundant number, since it is smaller than the sum of its proper divisors (45866172).

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

30040764 is a wasteful number, since it uses less digits than its factorization.

30040764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14846 (or 14831 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 30040764 is about 5480.9455388646. The cubic root of 30040764 is about 310.8639238167.

Adding to 30040764 its reverse (46704003), we get a palindrome (76744767).

The spelling of 30040764 in words is "thirty million, forty thousand, seven hundred sixty-four".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 169 338 507 676 1014 2028 14813 29626 44439 59252 88878 177756 192569 385138 577707 770276 1155414 2310828 2503397 5006794 7510191 10013588 15020382 30040764