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30025124 = 227506281
BaseRepresentation
bin111001010001…
…0010110100100
32002111102201122
41302202112210
530141300444
62551313112
7513131543
oct162422644
962442648
1030025124
1115a48358
12a07b798
1362b355c
143db815a
1529814ee
hex1ca25a4

30025124 has 6 divisors (see below), whose sum is σ = 52543974. Its totient is φ = 15012560.

The previous prime is 30025123. The next prime is 30025133. The reversal of 30025124 is 42152003.

It can be written as a sum of positive squares in only one way, i.e., 29702500 + 322624 = 5450^2 + 568^2 .

It is not an unprimeable number, because it can be changed into a prime (30025123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3753137 + ... + 3753144.

It is an arithmetic number, because the mean of its divisors is an integer number (8757329).

Almost surely, 230025124 is an apocalyptic number.

It is an amenable number.

30025124 is a deficient number, since it is larger than the sum of its proper divisors (22518850).

30025124 is a wasteful number, since it uses less digits than its factorization.

30025124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7506285 (or 7506283 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 30025124 is about 5479.5185919933. The cubic root of 30025124 is about 310.8099665143.

Adding to 30025124 its reverse (42152003), we get a palindrome (72177127).

The spelling of 30025124 in words is "thirty million, twenty-five thousand, one hundred twenty-four".

Divisors: 1 2 4 7506281 15012562 30025124