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30013224 = 2331250551
BaseRepresentation
bin111001001111…
…1011100101000
32002110211101220
41302133130220
530140410344
62551142040
7513052053
oct162373450
962424356
1030013224
1115a3a41a
12a074920
1362ab007
143db3a9a
15297cc19
hex1c9f728

30013224 has 16 divisors (see below), whose sum is σ = 75033120. Its totient is φ = 10004400.

The previous prime is 30013201. The next prime is 30013283. The reversal of 30013224 is 42231003.

It is a super-2 number, since 2×300132242 = 1801587229748352, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 625252 + ... + 625299.

It is an arithmetic number, because the mean of its divisors is an integer number (4689570).

Almost surely, 230013224 is an apocalyptic number.

It is an amenable number.

30013224 is an abundant number, since it is smaller than the sum of its proper divisors (45019896).

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

30013224 is a wasteful number, since it uses less digits than its factorization.

30013224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1250560 (or 1250556 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 30013224 is about 5478.4326225664. The cubic root of 30013224 is about 310.7688994917.

Adding to 30013224 its reverse (42231003), we get a palindrome (72244227).

The spelling of 30013224 in words is "thirty million, thirteen thousand, two hundred twenty-four".

Divisors: 1 2 3 4 6 8 12 24 1250551 2501102 3751653 5002204 7503306 10004408 15006612 30013224