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30606224 = 2411215809
BaseRepresentation
bin111010011000…
…0001110010000
32010120221211212
41310300032100
530313344344
63011555252
7521101655
oct164601620
963527755
1030606224
1116304a00
12a2bbb28
136457bbc
1440c9c2c
152a4879e
hex1d30390

30606224 has 30 divisors (see below), whose sum is σ = 65184630. Its totient is φ = 13911040.

The previous prime is 30606217. The next prime is 30606227. The reversal of 30606224 is 42260603.

It can be written as a sum of positive squares in only one way, i.e., 18215824 + 12390400 = 4268^2 + 3520^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30606224.

It is not an unprimeable number, because it can be changed into a prime (30606227) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5969 + ... + 9840.

It is an arithmetic number, because the mean of its divisors is an integer number (2172821).

Almost surely, 230606224 is an apocalyptic number.

It is an amenable number.

30606224 is an abundant number, since it is smaller than the sum of its proper divisors (34578406).

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

30606224 is a wasteful number, since it uses less digits than its factorization.

30606224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15839 (or 15822 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 30606224 is about 5532.2892187593. The cubic root of 30606224 is about 312.8022854210.

Adding to 30606224 its reverse (42260603), we get a palindrome (72866827).

The spelling of 30606224 in words is "thirty million, six hundred six thousand, two hundred twenty-four".

Divisors: 1 2 4 8 11 16 22 44 88 121 176 242 484 968 1936 15809 31618 63236 126472 173899 252944 347798 695596 1391192 1912889 2782384 3825778 7651556 15303112 30606224