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30020244 = 22323108769
BaseRepresentation
bin111001010000…
…1001010010100
32002111012000220
41302201022110
530141121434
62551234340
7513111402
oct162411224
962435026
1030020244
1115a44721
12a0789b0
1362b1277
143db6472
15297ed49
hex1ca1294

30020244 has 24 divisors (see below), whose sum is σ = 73093440. Its totient is φ = 9571584.

The previous prime is 30020227. The next prime is 30020251. The reversal of 30020244 is 44202003.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54109 + ... + 54660.

It is an arithmetic number, because the mean of its divisors is an integer number (3045560).

Almost surely, 230020244 is an apocalyptic number.

It is an amenable number.

30020244 is an abundant number, since it is smaller than the sum of its proper divisors (43073196).

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

30020244 is a wasteful number, since it uses less digits than its factorization.

30020244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108799 (or 108797 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 30020244 is about 5479.0732793055. The cubic root of 30020244 is about 310.7931268967.

Adding to 30020244 its reverse (44202003), we get a palindrome (74222247).

The spelling of 30020244 in words is "thirty million, twenty thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 12 23 46 69 92 138 276 108769 217538 326307 435076 652614 1305228 2501687 5003374 7505061 10006748 15010122 30020244