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230720446 = 21144923357
BaseRepresentation
bin11011100000010…
…00001110111110
3121002010210221201
431300020032332
5433031023241
634521050114
75501043235
oct1560101676
9532123851
10230720446
11109265760
126532693a
1338a52198
14228dbb1c
15153c6931
hexdc083be

230720446 has 16 divisors (see below), whose sum is σ = 378399600. Its totient is φ = 104634880.

The previous prime is 230720443. The next prime is 230720453. The reversal of 230720446 is 644027032.

230720446 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230720443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1801 + ... + 21556.

It is an arithmetic number, because the mean of its divisors is an integer number (23649975).

Almost surely, 2230720446 is an apocalyptic number.

230720446 is a deficient number, since it is larger than the sum of its proper divisors (147679154).

230720446 is a wasteful number, since it uses less digits than its factorization.

230720446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23819.

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 230720446 is about 15189.4847180541. The cubic root of 230720446 is about 613.3316281327.

Adding to 230720446 its reverse (644027032), we get a palindrome (874747478).

The spelling of 230720446 in words is "two hundred thirty million, seven hundred twenty thousand, four hundred forty-six".

Divisors: 1 2 11 22 449 898 4939 9878 23357 46714 256927 513854 10487293 20974586 115360223 230720446