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230421340 = 22557120177
BaseRepresentation
bin11011011101111…
…11001101011100
3121001120121122201
431232333031130
5432441440330
634510421244
75465356222
oct1556771534
9531517581
10230421340
11109080a66
1265201824
1338978cb6
1422860b12
1515367eca
hexdbbf35c

230421340 has 24 divisors (see below), whose sum is σ = 484756272. Its totient is φ = 92002560.

The previous prime is 230421293. The next prime is 230421343. The reversal of 230421340 is 43124032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230421343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1332 + ... + 21508.

It is an arithmetic number, because the mean of its divisors is an integer number (20198178).

Almost surely, 2230421340 is an apocalyptic number.

230421340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230421340 is an abundant number, since it is smaller than the sum of its proper divisors (254334932).

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

230421340 is a wasteful number, since it uses less digits than its factorization.

230421340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20757 (or 20755 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 230421340 is about 15179.6357005035. The cubic root of 230421340 is about 613.0664724640.

Adding to 230421340 its reverse (43124032), we get a palindrome (273545372).

The spelling of 230421340 in words is "two hundred thirty million, four hundred twenty-one thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 571 1142 2284 2855 5710 11420 20177 40354 80708 100885 201770 403540 11521067 23042134 46084268 57605335 115210670 230421340