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30027564 = 2233739719
BaseRepresentation
bin111001010001…
…0111100101100
32002111120002000
41302202330230
530141340224
62551332300
7513141630
oct162427454
962446060
1030027564
1115a4a176
12a081090
1362b46b8
143db8dc0
1529820c9
hex1ca2f2c

30027564 has 48 divisors (see below), whose sum is σ = 88972800. Its totient is φ = 8579088.

The previous prime is 30027563. The next prime is 30027587. The reversal of 30027564 is 46572003.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (30027563) 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, 19104 + ... + 20615.

It is an arithmetic number, because the mean of its divisors is an integer number (1853600).

Almost surely, 230027564 is an apocalyptic number.

It is an amenable number.

30027564 is an abundant number, since it is smaller than the sum of its proper divisors (58945236).

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

30027564 is a wasteful number, since it uses less digits than its factorization.

30027564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39739 (or 39731 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 30027564 is about 5479.7412347665. The cubic root of 30027564 is about 310.8183856389.

Adding to 30027564 its reverse (46572003), we get a palindrome (76599567).

The spelling of 30027564 in words is "thirty million, twenty-seven thousand, five hundred sixty-four".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 54 63 84 108 126 189 252 378 756 39719 79438 119157 158876 238314 278033 357471 476628 556066 714942 834099 1072413 1112132 1429884 1668198 2144826 2502297 3336396 4289652 5004594 7506891 10009188 15013782 30027564