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30424072 = 237543287
BaseRepresentation
bin111010000001…
…1110000001000
32010020200222111
41310003300020
530242032242
63004032104
7516412630
oct164036010
963220874
1030424072
11161a0068
12a232634
1363c3013
14407d6c0
152a0e817
hex1d03c08

30424072 has 16 divisors (see below), whose sum is σ = 65194560. Its totient is φ = 13038864.

The previous prime is 30424061. The next prime is 30424099. The reversal of 30424072 is 27042403.

It is a super-2 number, since 2×304240722 = 1851248314122368, 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, 271588 + ... + 271699.

It is an arithmetic number, because the mean of its divisors is an integer number (4074660).

Almost surely, 230424072 is an apocalyptic number.

It is an amenable number.

30424072 is an abundant number, since it is smaller than the sum of its proper divisors (34770488).

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

30424072 is a wasteful number, since it uses less digits than its factorization.

30424072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543300 (or 543296 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 30424072 is about 5515.8020269042. The cubic root of 30424072 is about 312.1805058932.

Adding to 30424072 its reverse (27042403), we get a palindrome (57466475).

The spelling of 30424072 in words is "thirty million, four hundred twenty-four thousand, seventy-two".

Divisors: 1 2 4 7 8 14 28 56 543287 1086574 2173148 3803009 4346296 7606018 15212036 30424072