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203230412 = 227113791741
BaseRepresentation
bin11000001110100…
…00110011001100
3112011102011201022
430013100303030
5404011333122
632055533312
75015300330
oct1407206314
9464364638
10203230412
11a479a020
125808a238
13331487a8
141cdc37c0
1512c96642
hexc1d0ccc

203230412 has 48 divisors (see below), whose sum is σ = 444837120. Its totient is φ = 78926400.

The previous prime is 203230373. The next prime is 203230439. The reversal of 203230412 is 214032302.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115862 + ... + 117602.

It is an arithmetic number, because the mean of its divisors is an integer number (9267440).

Almost surely, 2203230412 is an apocalyptic number.

203230412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203230412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222418560).

203230412 is an abundant number, since it is smaller than the sum of its proper divisors (241606708).

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

203230412 is a wasteful number, since it uses less digits than its factorization.

203230412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2142 (or 2140 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 203230412 is about 14255.8904316777. The cubic root of 203230412 is about 587.9353400446.

Adding to 203230412 its reverse (214032302), we get a palindrome (417262714).

The spelling of 203230412 in words is "two hundred three million, two hundred thirty thousand, four hundred twelve".

Divisors: 1 2 4 7 11 14 22 28 44 77 154 308 379 758 1516 1741 2653 3482 4169 5306 6964 8338 10612 12187 16676 19151 24374 29183 38302 48748 58366 76604 116732 134057 268114 536228 659839 1319678 2639356 4618873 7258229 9237746 14516458 18475492 29032916 50807603 101615206 203230412