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30020324 = 227505081
BaseRepresentation
bin111001010000…
…1001011100100
32002111012010212
41302201023210
530141122244
62551234552
7513111545
oct162411344
962435125
1030020324
1115a44794
12a078a58
1362b1309
143db64cc
15297ed9e
hex1ca12e4

30020324 has 6 divisors (see below), whose sum is σ = 52535574. Its totient is φ = 15010160.

The previous prime is 30020299. The next prime is 30020327. The reversal of 30020324 is 42302003.

It can be written as a sum of positive squares in only one way, i.e., 25180324 + 4840000 = 5018^2 + 2200^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30020299 and 30020308.

It is not an unprimeable number, because it can be changed into a prime (30020327) 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, 3752537 + ... + 3752544.

It is an arithmetic number, because the mean of its divisors is an integer number (8755929).

Almost surely, 230020324 is an apocalyptic number.

It is an amenable number.

30020324 is a deficient number, since it is larger than the sum of its proper divisors (22515250).

30020324 is a wasteful number, since it uses less digits than its factorization.

30020324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7505085 (or 7505083 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 30020324 is about 5479.0805798053. The cubic root of 30020324 is about 310.7934029708.

Adding to 30020324 its reverse (42302003), we get a palindrome (72322327).

The spelling of 30020324 in words is "thirty million, twenty thousand, three hundred twenty-four".

Divisors: 1 2 4 7505081 15010162 30020324