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30013124 = 2222333647
BaseRepresentation
bin111001001111…
…1011011000100
32002110211021012
41302133123010
530140404444
62551141352
7513051551
oct162373304
962424235
1030013124
1115a3a339
12a074858
1362aac5b
143db3a28
15297cb9e
hex1c9f6c4

30013124 has 12 divisors (see below), whose sum is σ = 52760064. Its totient is φ = 14938824.

The previous prime is 30013121. The next prime is 30013129. The reversal of 30013124 is 42131003.

It is a super-2 number, since 2×300131242 = 1801575224478752, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30013099 and 30013108.

It is not an unprimeable number, because it can be changed into a prime (30013121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15932 + ... + 17715.

It is an arithmetic number, because the mean of its divisors is an integer number (4396672).

Almost surely, 230013124 is an apocalyptic number.

It is an amenable number.

30013124 is a deficient number, since it is larger than the sum of its proper divisors (22746940).

30013124 is a wasteful number, since it uses less digits than its factorization.

30013124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33874 (or 33872 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 30013124 is about 5478.4234958608. The cubic root of 30013124 is about 310.7685543446.

Adding to 30013124 its reverse (42131003), we get a palindrome (72144127).

The spelling of 30013124 in words is "thirty million, thirteen thousand, one hundred twenty-four".

Divisors: 1 2 4 223 446 892 33647 67294 134588 7503281 15006562 30013124