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30544230 = 2352344267
BaseRepresentation
bin111010010000…
…1000101100110
32010110210210210
41310201011212
530304403410
63010400250
7520423143
oct164410546
963423723
1030544230
1116272372
12a290086
136435912
1440b13ca
152a35220
hex1d21166

30544230 has 32 divisors (see below), whose sum is σ = 76495104. Its totient is φ = 7790816.

The previous prime is 30544211. The next prime is 30544231. The reversal of 30544230 is 3244503.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30544197 and 30544206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30544231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21444 + ... + 22823.

It is an arithmetic number, because the mean of its divisors is an integer number (2390472).

Almost surely, 230544230 is an apocalyptic number.

30544230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30544230 is an abundant number, since it is smaller than the sum of its proper divisors (45950874).

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

30544230 is a wasteful number, since it uses less digits than its factorization.

30544230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44300.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 30544230 is about 5526.6834539351. The cubic root of 30544230 is about 312.5909452634.

Adding to 30544230 its reverse (3244503), we get a palindrome (33788733).

The spelling of 30544230 in words is "thirty million, five hundred forty-four thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 23 30 46 69 115 138 230 345 690 44267 88534 132801 221335 265602 442670 664005 1018141 1328010 2036282 3054423 5090705 6108846 10181410 15272115 30544230